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【单选题】
下列关于接触角的描述,正确的是
A.
润湿达到平衡后,在气液固三相的交界点上,沿气液界面画一条切线,这条切线经过液体内部,与固液界面之间的夹角
B.
润湿达到平衡后,在气液固三相的交界点上,气液界面与固液界面之间的夹角
C.
润湿达到平衡后,沿气液界面画一条切线,这条切线经过液体内部,与固液界面之间的夹角
D.
沿气液界面画一条切线,这条切线经过液体内部,与固液界面之间的夹角
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【简答题】直径相同、材料不同的两根等长的实心圆轴,在相同的扭矩作用下,其最大剪应力、扭转角、极惯性矩是否相同
【单选题】------ You don’t look well. Are you ill? ------ No, the exam is coming, and I _____ reading until midnight.
A.
kept up
B.
got up
C.
stayed up
D.
work up
【判断题】直径相同、材料不同的两根等长的实心轴,在相同的荷载P作用下,它们的压应力相同。( )
A.
正确
B.
错误
【简答题】当数据从一个子网传输到另一个子网时,可通过____来完成。
【单选题】Many people driving around the suburbs in their giant SUVs while taking on their new cell phones are, in fact, deeply ____.
A.
in order
B.
on duty
C.
in despair
D.
in debt
【单选题】—Betty, you don’t look well. What's wrong? ----I have a fever. —______. You'd better go to see a doctor.
A.
I'm sorry to hear that
B.
Oh, mine
C.
It's all light
D.
You look bad
【简答题】当数据从一个子网传输到另一个子网时,可通过 ________ 设备 来完成。
【简答题】运用所学的单词补全对话(5分) A: Hey, Maria. You don’t look well. What’s the 小题1:_______? B: Well. I’m feeling 小题2:________. I have a headache and a cough. A: I’m sorry to 小题3:________that. How 小题4:_____ have you b...
【单选题】7下列图元属于系统族的是( )
A.
结构柱
B.
楼梯
C.
D.
地形表面
【单选题】— Betty, you don’t look well. What's wrong? —I have a fever. — ______. You'd better go to see a doctor.
A.
I'm sorry to hear that
B.
Oh, mine
C.
It's all right
D.
You look bad
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