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【单选题】
关于妊娠期母体生殖系统的变化，哪项是错误的（ ）A.
妊娠早期子宫呈球形
B.
妊娠12～14出现不规则无痛性收缩称BraxtonHicks收缩
C.
妊娠期间有乳汁分泌
D.
妊娠期阴道粘膜变软
E.
接近临产时，宫颈管变短并出现轻度扩张
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反馈参考答案：
举一反三
【简答题】惩罚与负强化就其功能来说，没有本质区别。（ ）
【单选题】How much to believe of what the other party tells you
A.
depends on the reputation of the other party.
B.
is affected by the circumstances of the negotiation.
C.
is related to how he or she treated you in the past.
D.
is the dilemma of trust.
E.
All of the above.
【单选题】If you believe damage has been caused by freezing, wait to ___ the tree until the spring to determine where and how much to cut.
A.
resign
B.
discard
C.
prune
D.
lessen
【简答题】How much water do many people believe they are supposed to drink daily?
【单选题】Companies believe there is a clear limit to how much people will pay for 'experience'.
A.
真
B.
假
C.
NOT GIVEN
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