单项选择题

某尿毒症病人，用5％碳酸氢钠溶液纠正酸中毒，静脉滴注将完毕时突然出现手足抽搐。最可能的原因是

A.脑水肿
B.低血磷
C.低血钙
D.碱中毒
E.低血钾
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单项选择题
16_____.A.spendsB.takesC.killsD.makes
A.A.spends
B.takes
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单项选择题
The newborn pays more attention to a human face than any other kind of objects because ________.A) he sees a human face more often than any other kind of patternB) he has an inherent ability to regard a human being as helpfulC) a human face is the most complex pattern he can seeD) a human face is often accompanied by a pleasant voice
A.A)
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