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【单选题】
下列哪项不是器质性便秘的原因A.
全身性疾病致肠肌松弛，排便无力
B.
多次妊娠所致腹肌及盆肌张力不足
C.
腹腔或盆腔内肿瘤压迫
D.
铅中毒所致肠肌痉挛
E.
肛门病变致排便疼痛而惧怕排便
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【简答题】简述中国汽车工业的发展历程。
【单选题】Which of the following descriptions is INCORRECT?
A.
A limit of 120 decibels means an end to important industrial and scientific research.
B.
Scientists know clearly what kinds of noises are harmful to ocean animals.
C.
Many scientists suspected that noise is more dangerous than they expected.
D.
Scientists couldn't reach agreements in some aspects.
【简答题】阅读理解。 Having a husband means an extra seven hours of housework each week for women, according to a new study. For men, getting married saves an hour of housework a week. 'It's a well-known pattern ,' ...
【简答题】阅读理解。 Having a husband means an extra seven hours of housework each week for women, according to a new study. For men, getting married saves an hour of housework a week. 'It's a well-known pattern ,' ...
【单选题】如图2-8所示,某输出变压器的副绕组有中间抽头,以便接8Ω或2Ω的扬声器,两者均能达到阻抗匹配,则副绕组两部分匝数比N2/N3为——
A.
1
B.
2
C.
3
D.
4
【简答题】Having a husband means an extra seven hours of housework each week for women, according to a new study. For men, getting married saves an hour of housework a week. “It’s a well-known pattern ,” said l...
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