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【单选题】
预制桩的混凝土浇筑应从桩顶至桩尖连续浇筑,采用叠层法生产时,上层桩和邻桩浇筑,必须在下层和邻桩的混凝土强度达到设计强度的( )以后才能进行。A.
40%;
B.
30%;
C.
50%;
D.
70%。
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反馈参考答案：
举一反三
【单选题】气短,来医院诊为慢性心功能不全。若给予地高辛每日维持量治疗,地高辛的半衰期为:( )
A.
19小时
B.
23小时
C.
30~36小时
D.
48小时
E.
5~7天
【简答题】Have you got a Facebook account? Are you thinking of getting one? Jamie Simmonds has just signed up. Let's see how she's getting along. My Diary MONDAY: I'm officially a Facebooker. I find a few peopl...
【单选题】听力原文：Tim, on the subject of whether to accept that credit application you received from Express systems Limited. I think you need to be very careful about this one. The thing is, I've just been talkin...
A.
congratulating
B.
canceling
C.
warning
D.
postponing
E.
offering
F.
refusing
G.
booking
H.
confirming
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