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单选题 excenter
学科：工程学科英语23-24-2
时间：2024-06-21 12:18:34
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题目1单选题
excenterA. 旁心B. 内心C. 外心D. 重心
题目2单选题
A kite is held in the air when the push of the air on the underside of the kite is greater than the push of the air on the upper side. The difference in push is controlled by the wind. An aircraft stays in the air for the same reason, except that it has to keep moving rapidly to maintain this difference in air pressure above and below its wings. A kite flies because of the wind; a plane flies because of its ______A. massB. pilotC. motionD. direction
题目3单选题
perinatalA. 生产的B. 临产的C. 产后的D. 怀孕的
题目4单选题
留存率A. retention rateB. yield rateC. scrap rateD. vibration rate
题目5单选题
high cost of implementationA. 高昂的修复费用B. 高昂的转移费用C. 高昂的实施成本D. 高昂的修复代价
题目6单选题
circumnavigateA. 逆向航行B. 环绕…航行C. 顺向航行D. 沿着…航行
题目7单选题
outletA. 零售店B. 禁止C. 进入D. 出口
题目8单选题
underpassA. 下水道B. 隧道C. 天桥D. 地下通道
题目9单选题
temporarily simulated or extended by computer softwareA. immersionB. immersiveC. immediatelyD. immerge
题目10单选题
Signaling by sound is an old practice. Primitive tribes gave warnings and other signals by means of drums. Certain vehicles, such as some police cars, fire engines and ambulances, use a siren to warn other cars to clear the way for them. Ships travelling through fog use sound signals to prevent ______A. collisionsB. groundingC. piracyD. speed
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