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【多选题】
工程建设定额的特点包括（）。A.
科学性
B.
系统性
C.
先进性
D.
统一性
E.
兼容性
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【简答题】简单再生产就是在 __________ 规模上进行的再生产。
【单选题】What does “network solo” mean?
A.
To socialize alone.
B.
To get on the net.
C.
To play game together.
D.
To have net meeting.
【单选题】What do we know about the author and her solo travel?
A.
She isn’t susceptible to any dangerous situations.
B.
It is very hard for the author to make the decision to travel alone.
C.
Only a few of her friends share her dream of exploring China.
D.
Her travel proves to be worthwhile despite unpleasant experiences.
【单选题】What do we know about the author and her solo travel?
A.
She isn't susceptible to any dangerous situations.
B.
Only a few of her friends share her dream of exploring China.
C.
It is very hard for the author to make the decision to travel alone.
D.
Her travel proves to be worthwhile despite unpleasant experiences.
【简答题】What kind of areas should a solo traveler avoid in order to stay safe?
【简答题】What kinds of places are recommended for solo travelers?
【简答题】在加工中心上使用的刀库有两种,一种是盘式刀库,另一种是链式刀库。 主要适于小型加工中心, 主要用在大中型加工中心。
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