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【单选题】
抹灰层厚度一般为15~20mm,最厚不超过( )mm。A.
25
B.
30
C.
20
D.
15
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举一反三
【单选题】What did the students find out about McKay? 查看材料 A.He trained pilots for some time.###
A.
What did the students find out about McKay? 查看材料 A.He trained pilots for some time.
B.
He lived longer than other pilots.
C.
He died in the Second World War.
D.
He was downed by the pilot Boelcke.
【简答题】简述眼球壁的组成及功能
【单选题】What did the students find out about McKay?
A.
He trained pilots for some time.
B.
He lived longer than other pilots.
C.
He died in the Second World War.
D.
He was downed by the pilot Boelcke.
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