试题与答案

不锈钢焊条型号中数字后的字母“L”表示( )。A.碳含量较低 B.硫含量较高 C.

题型:单项选择题

题目:

不锈钢焊条型号中数字后的字母“L”表示( )。

A.碳含量较低

B.硫含量较高

C.硅含量较高

D.硫、磷含量较低

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A解析: 嵌插骨折时两断端嵌插,无反常活动和骨擦音(B错),一般无明显畸形(D错)。由于间接外力所致的嵌插骨折局部软组织受损不重(C错)。

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