%C6%C0%B7%D6%B5%C4%CA%B1%BA%F2%D2%AA%CF%C8%D4%F5%D1%F9%D4%D9%C6%C0%B7%D6%A3%BF%A3%A8%A3%A9

设8255A的四个端口地址分别为00C0H、00C2H、00C4H和00C6H，要求用置0、置1的方法对PC6置1，对PC4置0。

%25B1%25E7%25C2%25DB%25CA%25C7%25B2%25FB%25CA%25F6%25D7%25D4%25BC%25BA%25B5%25C4%25C0%25ED%25D3%25C9%25BA%25CD%25BD%25D2%25C2%25B6%25B6%25D4%25B7%25BD%25B5%25C4%25C3%25AC%25B6%25DC%25A1%25A3%25A3%25A8%25A3%25A9

%C1%B5%B0%AE%B3%F5%C6%DA%D4%BC%BB%E1%CA%B1%A3%AC%B2%BB%CA%CA%D2%CB%B5%C4%D2%BB%CF%EE%CA%C7%A3%A80

%CE%D2%C3%C7%B9%FA%BC%D2%D5%D0%C8%CB%D1%A1%C8%CB%B5%C4%B9%D8%BC%FC%CA%B1%BC%E4%CA%C7%A3%A8%A3%A9%A1%A3

%BE%AD%B5%E4%C8%CB%C1%A6%D7%CA%D4%B4%B9%DC%C0%ED%B5%C4%D7%DA%D6%BC%CA%C7%B0%D1%C8%CB%BA%CD%CA%C2%C6%A5%C5%E4%C6%F0%C0%B4%A1%A3%A3%A8%A3%A9

%CF%C2%C1%D0%C4%C4%CF%EE%D4%AD%D2%F2%B2%BB%CA%F4%D3%DA%B1%BB%B6%AF%CA%BD%B5%F7%D5%FB%A3%A8%A3%A9

这幅“现成品”艺术《泉》的作者是谁？<img src="http://p.ananas.chaoxing.com/star3/origin/8018881e77c23871c4ec594ca3f145c6.jpg" title="44.jpg"/>

“（   ）” 的透视法则是西方古典绘画的重要特点。http://image.zhihuishu.com/testzhs/onlineexam/ueditor/201610/a17708b5dd9e48de9bf1bbe22e16c6ca.png

用向前欧拉公式解初值问题：, 取, 可得 (　　)（小数点后取4位）f3d0604dac9e6b8c795c0c0d27d6cc9a.png194924b51fb40970598d53534dd718ef.png26496c16e96b4883648058213c0b5d40.png

以上2张海报设计的共同规律有哪些94add4ac466e054d6c18c4ef15df8a1d.pngeaf0df5eff2411b30c0e9fb1bf417d77.png

用向前欧拉公式解初值问题：, 取, 可得 ( )（小数点后取4位）f3d0604dac9e6b8c795c0c0d27d6cc9a.png194924b51fb40970598d53534dd718ef.png26496c16e96b4883648058213c0b5d40.png

“（ ）” 的透视法则是西方古典绘画的重要特点。http://image.zhihuishu.com/testzhs/onlineexam/ueditor/201610/a17708b5dd9e48de9bf1bbe22e16c6ca.png

是星期几？68b5cf9c28b258aac4665a27c0f85b9f.png

%B5%B1%C4%E3%CD%FC%BC%C7%C4%E3%C8%CB%B5%C4%B8%DF%B9%F3%C9%ED%B7%DD%B5%C4%CA%B1%BA%F2%A3%AC%BE%CD%CA%C7%A3%A8%A3%A9%B5%C4%BF%AA%CA%BC%A1%A3

设为矩阵，均为矩阵，若时，线性方程（ ）.9c482b7ca50e4176e9f0e00eced804ea.pngfa7d4ec8059bfaeca741620603eb46b2.png15547bbc8f4e37cd91e69c4fabed22cc.png9ccab34a9de892cd11985827daf6e38e.pnga27794ddc73d6af887c200ef1f344a0a.png16c50ec5955eae59ec628d18f5300cc8.png

%D2%D4%CF%C2%C4%C4%CF%EE%CA%C7%D0%B4%BC%F2%C0%FA%B5%C4%D4%AD%D4%F2%A3%BF%A3%A8%A3%A9

%D6%BB%D3%D0%A3%A8%A3%A9%C1%CB%A3%AC%B2%C5%C4%DC%B1%DC%C3%E2%B7%B8%B4%ED%CE%F3%A1%A3

这幅“现成品”艺术《泉》的作者是谁？8018881e77c23871c4ec594ca3f145c6.jpg

请选出正确的断面图表示方法950c924ca4370c7f559879b5e65b05b5.png

%D7%A2%D2%E2%C9%F9%C0%CB%B5%C4%BC%BC%C7%C9%D6%B8%B5%C4%CA%C7%D2%AA%D7%A2%D2%E2%A3%A8%A3%A9

设两个8位补码表示的数b7b6b5b4b3b2b1b0和a7a6a5a4a3a2a1a0相加时溢出(b7、a7为符号标志)，则(2)。

把下面的六个图形分为两类．使每一类图形都有各自的共同特征或规律，分类正确的一项是：<img src='https://img2.soutiyun.com/ask/uploadfile/5574001-5577000/b53c4ca184755c0b4c11e0c6adeacbb7.jpg' />

f2ca50b1b5eaef2875a83e91a8a0cb5d

设两个8位补码表示的数b7b6b5b4b3b2b1b0和a7a6a5a4a3a2a1a0相加时溢出（b7、a7为符号标志)，则（2)。A