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【单选题】
机械强度最高的水门汀是( )A.
玻璃离子水门汀
B.
氧化锌丁香酚水门汀
C.
磷酸锌水门汀
D.
聚羧酸锌水门汀
E.
改进型氧化锌丁香酚水门汀
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【简答题】伯努利方程的物理意义是什么？
【单选题】— ____ do you go to have piano lessons? — At five in the afternoon.
A.
Where
B.
What time
C.
Which time
【单选题】—What do you think of the five doll mascots for the 2008 Olympic Games? — ______ , they are lovely, but we can't figure out what they mean easily.
A.
To tell the truth
B.
I'm afraid
C.
Unfortunately
D.
As a matter of fact
【简答题】伯努利方程的物理意义是什么？
【单选题】– What do you think Sally will be ________ five years? – She will be a doctor.
A.
in
B.
after
C.
for
【简答题】伯努利方程的物理意义是什么?
【简答题】(因过于激动)失去自制力;神志失常;发狂:
【简答题】失去自制力，神志失常，发狂A. beside oneself
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