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【单选题】
下列模板设计荷载中,属于特殊荷载的是( )。A.
新浇混泥土侧压力
B.
新浇混凝土重量
C.
振捣混泥土时产生的荷载
D.
风荷载
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皮皮学刷刷变学霸
举一反三
【单选题】Mrs. Taylor has 8-year-old daughter who has gift for painting – she has won two national prizes .
A.
a ; a
B.
an ; the
C.
an ; a
D.
the ; a
【单选题】为了解某校锡克氏试验的阳性率,在全校80个;班中随机抽取8个班,调查这些班中的所有学生,这种抽样属
A.
单纯随机抽样
B.
系统抽样
C.
分层抽样
D.
整群抽样
E.
多阶段抽样
【单选题】Mrs. Taylor has ____ 8-year-olddaughter who has ____ gift for painting. [ ]
A.
a; a
B.
an; the
C.
an;.a
D.
the; a
【简答题】Mrs. Taylor has completed a study on bird’s nests.
【单选题】Mrs. Taylor has ___ 9-year-old daughter who has ___ gift for painting—she has won two national prizes.
A.
a; a
B.
an; the
C.
an; a
D.
the; a
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