钢筋在混凝土中应有足够的锚固长度,钢筋的强度愈()、直径愈()、混凝土的强度愈(),则需要的钢筋锚固长度就愈()。
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Choose the ONE answer that best completes the sentence.It is taken _____________ that every child should learn mathematics.
A. serious
B. for granted
C. as a grant
D. down
The boy stood on ___________ and reached for the photo on the wall.
A. tiptoe
B. top
C. tip
D. footstep
There isalotof ___________ in assetmarkets.
A. flow
B. growth
C. froth
D. flurry