penetration period

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• 管片的抗渗等级在设计无明确规定时，一般按P8标准施工。P---为英文单词penetrate渗透的首字母，8为8个（）或0.8。

  A . A、大气压 B . B、Mpa C . C、pa D . D、Kpa

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• Fuel droplets injected into a diesel engine cylinder must have adequate penetration to （）

  A . prolong the ignition delay period B . ensure the beginning of fuel injection C . thoroughly utilize the air charge D . allow controlled fuel combustio

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• 阿特曼（I・Altman）等人于哪一年提出了社会渗透理论（social penetration theory）来解释关系发展的过程。（）

  A . 1973年 B . 1975年 C . 1972年 D . 1976年

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• When the wave period and the apparent rolling period are the same（）.

  A . synchronous rolling occurs B . roll period decreases C . roll period increases D . roll amplitude is dampened

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• 循回期（circulative period）

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• 以下哪些是DRCLock Period的可取值（）。

  A . 4时隙 B . 8时隙 C . 16时隙 D . 32时隙

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• 隐蔽期（eclipse period）

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• 获毒（取食）期（acquisition period）

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• 夜现周期性(nocturnal periodicity)

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• 市场周期（Market period）

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• Leg penetration to depths which require pullout forces greater than that which can be supplied by the buoyancy of the hull may exist in（）.

  A . soft mud B . sand C . silt D . soft to firm clay

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• 安全壳贯穿件 containment penetration assembly

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• 围绝经期(perimenopausal period)

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• 侵入期（penetration period）

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• 侏罗纪Jurassic period 属于（ ）地质年代

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• The Anglo-Saxon Period refers to the time period from ____to ____.

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• The sunless world refers to the mountains of Montana where they had lived after their migration to the Great Plains. Those mountains were so high and were covered with such dense forests that the sunlight could not penetrate them.

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• The third period of Charles Dickens's literary career was a period of intensifying ______.

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• 请将以下句子翻译成汉语：Depiction of figures go beyond their formal beauty, penetrating into their different characters and personalities, their inner nature and social attributes, yet presents a standard for appreciation.

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• Generally, the U-curve pattern comprises four stages: _______ period, ______ period, _______ period, and ________ period.

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• penetrate [5penitreit]

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• In 844, Charles Stun, a British soldier and colonial administrator, made an expedition ______ a supposed inland sea; his party penetrated more than ,000 miles northward, almost to the center of Australia.

  A．in quest of B．with regard to C．in favor of D．by way of

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• If an animal's critical distance is penetrated, it will

  A. begin to attack. B. try to hide C. begin to jump D. run away

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• 38、已知某verilog仿真测试文件时钟信号描述如下： parameter PERIOD = 10; always begin CLK = 1'b0; （PERIOD/2) CLK = 1'b1; （PERIOD/2); end 且该verilog文件顶部有如下代码：`timescale 1us / 1ns，则模拟仿真时钟周期是

  A．10us B．10ns C．10ps D．1ns E．1ps F．1us

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