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【判断题】
The author suggests that it is good benchmark to set your energy-saving preferences to put your hard drive to sleep after 15 minutes of inactivity.A.
正确
B.
错误
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【简答题】流体在圆形直管中作滞流流动时,其速度分布是 形曲线,其管中心最大流速是平均流速的 倍。
【简答题】某流体在圆形直管中作滞流流动时,其速度分布式 曲线,其管中心最大流速为平均流速的 倍
【单选题】I was telling about my exciting travels when he _________ with a story of his own.
A.
broke down
B.
broke out
C.
broke in
D.
broke up
【简答题】某流体在圆形直管中作滞流流动时，其速度分布是（）型曲线。
【单选题】It was almost midnight when the fire ____ in the neighborhood.
A.
broke up
B.
broke down
C.
broke in
D.
broke out