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【单选题】
乳牙的作用是( )A.
练习刷牙
B.
美观
C.
促进颌骨发育
D.
说明生长发育的情况
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反馈参考答案：
举一反三
【单选题】陈女士,因粘连性唱梗阻伴呕吐2天入院。测血钾3mmol/l,给予静脉补钾,下列哪项有误。
A.
尿量20ml/h开始补钾
B.
液体中氯化钾浓度0.25%
C.
滴速60滴/分
D.
禁忌静脉推注
【单选题】Mum: Tony, look, here’s the birthday present for you. Tony: Really? __________.
A.
That’s great
B.
That’s not
C.
That’s true
D.
That’s it
【单选题】Tony's mum looks young and beautiful. It's hard to imagine she is already in her ________.
A.
fifties
B.
fifty
C.
fiftieths
D.
fiftieth
【单选题】Tony’s mum looks young and beautiful. It’s hard to imagine she is already in her _____.
A.
fifties
B.
fifty
C.
fiftieths
【单选题】Tony's mum looks young and beautiful. it's hard to imagine she is already in her _____ .
A.
fifties
B.
fifty
C.
fiftieths
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