问题
单项选择题
Chain slings are suitable for heavy slender articles, such as（）.
A.timber or steel rails
B.locomotives or boilers
C.railway passenger coaches
D.motor vehicles
答案
参考答案：A
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Chain slings are suitable for heavy slender articles, such as（）.
A.timber or steel rails
B.locomotives or boilers
C.railway passenger coaches
D.motor vehicles
参考答案：A