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【单选题】
产妇分娩后1～3天，体内的激素水平呈（ ）A.
高雌激素、高孕激素
B.
低雌激素、高泌乳激素
C.
低雌激素、高孕激素
D.
高雌激素、低泌乳激素
E.
高孕激素、低泌乳激素
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参考解析：
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皮皮学刷刷变学霸
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【简答题】• 下列是资金筹资渠道的是 •A. A. 发行股票 B. • B. 银行信贷资金 C. • C. 国家资金 D. • D. 企业自留资金
【单选题】I was really anxious about you. You ______ home without a word.
A.
mustn't leave
B.
shouldn't have left
C.
couldn't have left
D.
needn't leave
【单选题】I was really anxious about you. You him without a word. [ ]
A.
mustn't have
B.
shouldn't have left
C.
couldn't have left
D.
needn't leave
【单选题】I was really anxious about you. You ______ home without a word.
A.
mustn't leave
B.
shouldn't have left
C.
couldn't leave
D.
needn't leave
【单选题】台架试验检测标准中规定:液压制动汽车的制动协调时间不大于0.35S,气压制动汽车的制动协调时间不大于( )。
A.
0.6S
B.
0.15S
C.
0.25S
D.
0.55S
【单选题】台架试验检测标准中规定:液压制动汽车的制动协调时间不大于0.35s,气压制动汽车的制动协调时间不大于 。
A.
0.6s
B.
0.15s
C.
0.25s
D.
0.55s
【单选题】－I was really anxious about you. You shouldn’t have left without a ward. － .
A.
why not?
B.
Really?
C.
I don’t know
D.
I’m terribly sorry
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