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瞎缝为掩盖砌体灰缝内在质量缺陷，砌筑砌体时仅在靠近砌体表面处抹有砂浆，而内部无砂浆的竖向灰缝。( )
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举一反三
【简答题】I don’t suppose you need to worry.英译汉
【单选题】—Don't go on a voyage alone. —Don't worry. .
A.
I won ' t
B.
I don ' t
C.
I can ' t
D.
I haven ' t
【单选题】—Don't step on the grass next time, Mike. —________. [ ]
A.
Is that so?
B.
Don't worry.
C.
I don't know.
D.
Sorry, I won't.
【单选题】—My cousin bought me aft English learning machine, but I don't know ________. —Don't worry. Just follow the instruction. [ ]
A.
how to use it
B.
which one to choose
C.
when to use it
【简答题】Don‘t worry. Your child is well looking after here.
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