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【判断题】
鼓式车轮制动器是制动蹄片挤压随车轮同步旋转的制动鼓的外侧而获得制动力。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】二进制10000000转换为十进制等于
【单选题】How does the vent pipe system work?
A.
It takes air from the outside.
B.
It pulls radon from beneath the house and vents it to the outside.
C.
It mixes radon with water.
D.
It uses the electric fan to ventilate the house.
【单选题】Pressure Cooker (压力锅) Safety When you arecooking with a pressure cooker, you should learn a few common sense (常识) rules: 1. Neverleave the cooker unwatched when it is in use. 2. Add sufficientliquid b...
A.
as soon as the cooking is finished
B.
while it is still on the stove
C.
with force when it is hot
D.
after it is cooled down
【简答题】计算方法实际计算时，对数据只能取有限位表示，这时所产生的误差叫（）
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