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【单选题】
水力学中单位质量力是
A.
作用在单位体积液体上的质量力
B.
作用在单位重量液体上的质量力
C.
作用在单位面积液体上的质量力
D.
作用在单位质量液体上的质量力
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参考答案:
举一反三
【单选题】Before the bottle was a third ______, he began to tell me the story.
A.
vacant
B.
hollow
C.
finish
D.
empty
【单选题】下列关于安全法规的本质,哪一项是错误的( )。
A.
安全法规是劳动者意志的体现
B.
安全法规是社会关系的调整器
C.
安全法规不由社会经济决定
D.
安全法规建立在一定的经济基础上
【单选题】After a while, _____, he began to tell his story.
A.
slow and painful
B.
slowly and painful
C.
slowly and painfully
D.
slow and painfully
【单选题】唇形科的雄蕊为( )
A.
单体雄蕊
B.
聚药雄蕊
C.
二强雄蕊
D.
四强雄蕊
E.
二体雄蕊
【单选题】The young man would be sent to prison______ if he failed to tell a story without an end.
A.
forever
B.
for some time
C.
for a while
D.
for a year
【单选题】The writer of the passage intends to tell us that ______.
A.
he believes the story 'In the Kingdom of the Seals'
B.
we should know something about seals and not kill them
C.
Donald A. Mackenzie knows a lot of the seals
D.
seals are clever animals
【单选题】When Tom was asked to tell a story,________,he walked towards the platform. [     ]
A.
nervously and embarrassingly
B.
nervous and embarrassedly
C.
nervously and embarrassing
D.
nervous and embarrassed
【单选题】唇形科的雄蕊多为
A.
单体雄蕊
B.
二体雄蕊
C.
二强雄蕊
D.
四强雄蕊
E.
聚药雄蕊
【单选题】唇形科的雄蕊类型为 ( )
A.
单体雄蕊
B.
聚药雄蕊
C.
二强雄蕊
D.
四强雄蕊
【简答题】He was made ______ (tell) the whole story.A. to tell
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