The matter is not to be ____.
A. watched for
B. waited on
C. taken over
D. trifled with
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Younger children are curious ________ how things work ,and many of them want to take apart everything within their reach.
A. of
B. about
C. at
D. with
Children have a natural ________ about the world around them.
A. certainty
B. capability
C. cleverness
D. curiosity
酸洗槽与槽之间用()辊分开
A. 张力辊
B. 挤干辊
C. 拉矫机辊
D. 转向辊
下面那种缺陷不是板形缺陷()
A. 中浪
B. 双边浪
C. 欠酸洗
D. 翘曲