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【简答题】
听下面一段材料，回答第1-3题。 1. What program did the man watch on TV? A. A football game. B. An old film. C. Both A and B. 2. Why did the man miss the beginning of the film? A. Because he watched the football game first. B. Because he had his dinner first. C. Because he talked with his wife first. 3. Why didn't the man's wife enjoy the film? A. Because she preferred to see the football game. B. Because the film only lasted half an hour. C. Because she thought the book more interesting.
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】润湿接触角小于90°的为( )颗粒,不易与气泡产生黏附;润湿接触角大于90°的为( )颗粒,气浮体结合牢固不易脱落。
【简答题】润湿接触角
【单选题】矿物表面润湿接触角直接决定矿物的可浮性，其润湿接触角（），则矿物的疏水性强，易浮；接触角（），则矿物的（）难浮。
A.
小、大、疏水性弱
B.
小、大、疏水性强
C.
大、小、疏水性强
D.
大、小、疏水性弱
【简答题】在LTE网络规划流程中，拓扑结构设计主要包括[]规划和[]规划两部分。
【单选题】— What ______ your bike yesterday? — It didn't work. [ ]
A.
was happened in
B.
happened in
C.
was happened to
D.
happened to
【简答题】何为润湿接触角，接触角与界面张力的关系，对可浮性的影响。