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【单选题】
月经血不易凝固的主要原因是A.
血小板数量较少
B.
缺乏某些凝血因子
C.
子宫含纤溶酶原激活物较多
D.
子宫能合成分泌肝素
E.
子宫的组织因子含量低
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举一反三
【单选题】No one knows for sure when such a custom first _____.
A.
came into power
B.
came into being
C.
came true
D.
came out
【简答题】基本模数: 是模数协调中选用的基本尺寸单位,数值规定为()mm,表示符号为M,即1M=()mm。
【单选题】No one knows when such a custom first _____.
A.
came into power
B.
came into being
C.
came true
D.
came out
【简答题】( )是模数协调的基本尺寸,用( )表示。
【单选题】When such an organized group became too large for its members to travel together comfortably, it would__________.
A.
hurry up
B.
split up
C.
make up
D.
pick up
【单选题】Film has a much shorter history, especially when such art forms as music and painting.
A.
having compared to
B.
comparing to
C.
compare to
D.
compared to
【简答题】基本模数是模数协调中选定的标准尺寸单位,用 M 表示, 1M= mm 。
【单选题】When such an organised group became too large for its members to travel together comfortably, it would ______.
A.
hurry up
B.
split up
C.
make up
D.
pick up
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