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【单选题】
人工流产综合反应的发生原因主要是:
A.
疼痛刺激
B.
精神过度紧张
C.
迷走神经兴奋
D.
术中出血过多
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【单选题】What happened to the author’s son in the middle of his junior year?
A.
He was kicked out of school for having to go to jail.
B.
He broke the parking rules and had conflict with police.
C.
He was taken out of school by his parents and went home.
D.
He couldn’t afford to pay tuition and continue his education.
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A.
多电子原子中,在离核较近的区域内运动的电子能量较高
B.
原子核外电子的数目越多,电子的运动状态就越多
C.
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D.
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A.
stopped off
B.
gave in
C.
dropped out of
D.
pulled up
【单选题】Why did Gates drop out of Harvard in his junior year?
A.
Because he could not pay the tuition.
B.
Because he fell far behind others in his study.
C.
Because he didn't like the subject he was majoring.
D.
In order to devote his time to Microsoft.
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