Surprisingly,she'd slept,though her mind was （churning) when she went to bed_____

相似题目

• When Rip Van Winkle woke up and went back to his village,he found he had slept in the hill for（）

  A . 10 years　 B . 20 years C . 50 years　 D . None of the above

  查看最佳答案

• 一弹簧振子做简谐振动，周期为T，若t时刻和t+△t时刻的位移大小相等，运动方向也相同，则△t一定等于T的整数倍。

  A . 正确 B . 错误

  查看最佳答案

• 货车停留时间有：t货、t货车、t一次、t双重、t无调、t有调、t中，中间站主要分析（）。

  A . A、t货 B . B、t中 C . C、t货车 D . D、t有调

  查看最佳答案

• T-4101顶温度为（）℃，T-4102顶温度（）℃，T-4201顶温度（）℃，T-4301顶温（）℃，T-4302顶温度（）℃。

  查看最佳答案

• 货车停留时间有：t货、t货车、t一次、t双重、t无调、t有调、t中，货运站主要分析（）。

  A . A、t货 B . B、t中 C . C、t货车 D . D、t有调

  查看最佳答案

• 已知T（1）=9，T（2）=8，T（0）=5，Total=T（1）+T（2）+T（0），则Total=（）。

  A . 9 B . 22 C . 8 D . 5

  查看最佳答案

• 货车停留时间有：t货、t货车、t一次、t双重、t无调、t有调、t中，编组站主要分析（）。

  A . A、t货 B . B、t无调 C . C、t货车 D . D、t有调

  查看最佳答案

• Not surprisingly, music is a (n) __________habit, and our college students can take themselves wherever they go and they can listen to them over and over again.

  查看最佳答案

• Oliver was sent to Mr. Sowerberry , and slept ____ on the first night.

  查看最佳答案

• She'd lowered her voice until it was barely _____.

  查看最佳答案

• 设f（t)为因果信号，已知 f（t)*f&39;（t)=（1-t)e-tε（t) 求f（t)。

  设f(t)为因果信号，已知 f(t)*f&39;(t)=(1-t)e^-tε(t) 求f(t)。

  查看最佳答案

• 某连续时间LTI系统的输入为x（t)= u（t)－u（t－2)，单位冲激响应为h（t)=e－1u（t),试利用卷积积分的性质求解系统的输出y（t)= x（t)* h（t)。

  查看最佳答案

• 根据所听到的内容回答题__________ A. The movie was bad. B. The movie was excellent. C. She didn't go to the movie. D. She'd like to see it again.

  查看最佳答案

• "she'd despise me. She's the coolest girl in school.And everyone worships her because she's heaven"is said by ().

  A、Santa B、his Mom C、his Dad D、the C、onductor

  查看最佳答案

• 设t＜3时x（t)=0，确定以下每个信号的值保证为零的t值。（a)x（1-t) （b)x（1-t)+x（2-t) （c)x（1-t)x（2-t)（d)x（3t) （e)x（t/3)

  查看最佳答案

• 先款后货叫前T／T，先货后款叫后T／T。（)

  是 否

  查看最佳答案

• I don't think she'd get angry if you were a Little more （) when you disagreed with her on matters of child rearing.

  查看最佳答案

• It doesn't matter when or how long a person sleeps, but everyone needs some rest to stay alive. That's what all doctors' thought, until they heard about Jercy Page. Jercy Page, it was said, never slept. Could this be true.'？ The doctors decided to see this strange man by themselves.

  Jercy Page was ninety years old when the doctors came to his home in New Jersey. They thought for sure that he got some sleep of some kind. So they stayed with him and watched every movement he made. But they were surprised. Though they watched him hour after hour and day after day, they never saw Jercy Page sleeping. Actually, he did not even own a bed. He never needed one. The only rest that Jercy Page got was sitting in a comfortable chair and reading newspapers. The doctors were puzzled by this strange continuous sleeplessness. They asked him many questions, hoping to find an answer. They found only one answer that might explain his condition. Page remembered some talk about his mother having been injured several days before he was born. But that was all. Was this the real reason？ No one could be sure. The main idea of this passage is that ______. A．large numbers of people do not need sleep B．a person was found who actually didn't need any sleep C．everyone needs some sleep to stay alive D．people can live longer by trying not to sleep

  查看最佳答案

• 描述某连续系统的微分方程为y"（t)＋2y&39;（t)＋y（t)=f&39;（t)＋2f（t)。求当输入信号为f（t)=5e－2tε（t)时，

  描述某连续系统的微分方程为y"(t)+2y&39;(t)+y(t)=f&39;(t)+2f(t)。求当输入信号为f(t)=5e^-2tε(t)时，该系统的零状态响应y(t)。

  查看最佳答案

• Before high school teacher Kimberly Rugh got down to business at the start of a recent school week, she joked with her students about how she'd had to clean cake out of the corners of her house after her 2-year-old son's birthday party. This friendly combination of chitchat took place not in front of a blackboard but in an, E-mail message that Rugh sent to the 145 students she's teaching at the Florida Virtual School, one of the nation's leading online high schools. The school's motto is "any time, any place, any path, any pace."

  Florida's E-school attracts many students who need flexible scheduling, from young tennis stars and young musicians to brothers Tobias and Tyler Heeb, who take turns working on the computer while helping out. with their family's clam-farming business on Pine Island, off Florida's southwest coast. Home-schoolers also are well represented. Most students live in Florida, but 55 hail from West Virginia, where a severe teacher shortage makes it hard for many students to take advanced classes. Seven kids from Texas and four from Shanghai round out the student body. The great majority of Florida Virtual Schoolers—80 percent—are enrolled in regular Florida public or private high schools. Some are busy overachievers. Others are retaking classes they barely passed the first time. The school's biggest challenge is making sure that students aren't left to sink or swim on their own. After the school experienced a disappointing course completion rate of just 50 percent in its early years,Executive Director Julie Young made a priority out of what she calls "relationship-building," asking teachers to stay in frequent E-mail and phone contact with their students. That personal touch has helped. The completion rate is now 80 percent. Critics of online classes say that while they may have a limited place, they are a poor substitute for the face-to-face contact and socialization that take place in brick-and-mortar classrooms. Despite opportunities for online chats, some virtual students say they'd prefer to have more interaction with their peers. Students and parents are quick to acknowledge that virtual schooling isn't for everyone. "If your child's not focused and motivated, I can only imagine it would be a nightmare," says Patricia Haygood of Orlando, whose two daughters are thriving at the Florida school. For those who have what it takes, however, virtual learning fills an important niche. "I can work at my own pace, on my own time," says Hackney. "It's the ultimate in student responsibility." Kimberly Rugh Talked about her son's birthday party ______ . A．with her friends B．with her colleagues C．in the classroom D．in an E-mail massage sent to her students

  查看最佳答案

• f1（t)=t[e（t)- e（t+1)]，f2（t)= e（t)- e（t-1)

  查看最佳答案

• 甲公司是一家大型的国际电讯公司，它运行在复杂多变的国际市场环境下。外交、民族主义、战争、经济形势、高科技、激烈竞争和产品快速创新等这些因素影响着整个市场环境。该公司投入大量资金来研发新产品、提升销量，甚至不惜花费大量资金在其售后服务上。其产品的主要买主是一些大型且有实力的购买商和许多外国政府。这些购买方往往会受到外交压力、国际资金、政治忠诚、对等贸易等这些难以预计的环境因素影响，从而直接对甲公司的销售情况产生重大影响。(1).简述甲公司所在市场环境的特点。(2).环境分析对甲公司的经营成功有什么影响?(3).SLEPT分析法用在该公司合适吗?

  查看最佳答案

• Some fishing boats were becalmed just in front of us. Their shadows slept, or almost

  Some fishing boats were becalmed just in front of us. Their shadows slept, or almost slept, upon the water, a gentle quivering alone showing that it was not complete sleep, or if sleep, then it was sleep with dreams.

  查看最佳答案

• 6、设 r（t) = （3cos t，3sin t, 4 t)，则|r'（t)|=

  查看最佳答案