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【简答题】
某建筑楼梯踏步贴瓷砖，当楼梯宽为1350mm，踏步宽为300mm，150mm时，以踏步宽计算选用（ ）规格的地面砖较为合理。
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反馈参考答案：
举一反三
【判断题】Writers should be careful to give only good characteristics to their protagonists.
A.
正确
B.
错误
【单选题】---Be careful, don’t forget to follow your father. ---I know that, Mum. One can never be too careful.
A.
and
B.
or
C.
but
D.
so
【单选题】He often tells the children _____ when they play water sports. [ ]
A.
be careful
B.
to be careful with
C.
to be careful
D.
not be careless
【单选题】—Be careful not to drop the Tang Dynasty vase . —Yes , we can’t be .
A.
too careful
B.
very careful
C.
too careless
D.
careless enough
【单选题】It's important ______ fire. [ ]
A.
to care
B.
be careful
C.
to be careful
D.
to be careful with
【单选题】What did Helen have to be careful to hide?
A.
Her lack of interest in history.
B.
Her low opinion of her husband's writing.
C.
Her dislike of her husband's admirers.
D.
Her inability to understand his books.
【单选题】Be careful to move the equipment --- ______ it gently.
A.
doing
B.
do
C.
to do
D.
done
相关题目：
【单选题】It's important ______ fire. [ ]
A.
to care
B.
be careful
C.
to be careful
D.
to be careful with
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