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【单选题】
利用一虹吸管将通大气的开口水箱中的水引出流入大气中,在引水过程中,虹吸管内水的绝对压强在虹吸管的________处为最小。
A.
入口
B.
最高点
C.
最低点
D.
出口
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参考答案:
举一反三
【简答题】Listen carefully and answer questions.
【简答题】Listen carefully and make proper responses
【简答题】Listen carefully and make proper responses
【单选题】“hold up one’s hand” means :
A.
hold someone’s hand
B.
raise someone’s hand
C.
keep someone’s hand high
【简答题】Listen carefully and make proper responses
【单选题】It is a good habit to________,for people will always believe in you. [     ]
A.
keep one’s wo rd
B.
hold one’s breath
C.
help oneself
D.
get ready
【单选题】hold one’s feet to the fire
A.
scold one severely for a mistake
B.
do some bad things secretly
C.
get control over someone or something.
D.
ruin one’s own plan through foolish words
E.
to put pressure on someone to do something
【简答题】Listen carefully and make proper responses
【单选题】关于感觉皮层代表区的叙述,下列哪一项是错误的?
A.
体表感觉区在中央后回
B.
本体感觉区在中央前回
C.
视觉代表区在枕叶
D.
听觉代表区在颞叶
E.
内脏感觉的投射区在额叶
【简答题】Listen carefully and make proper responses
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