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问题 单项选择题

管道采用电弧焊接，当公称直径大于或等于150mm时，直管段上两对接焊缝中心的距离不应小于（）。

A.100mm

B.150mm

C.200mm

D.250mm

答案

参考答案：B

选择题

法国和德国在历史上很长一段历史时期是“政治宿敌”，下列内容不能反映这一关系的是

A．欧盟

B．德国统一

C．一战

D．二战
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填空题

CONVERSATION 2 (Questions 5-8)


The age when Miss Rowling started to write: (5) .
Miss Rowling considers herself very luck because she can (6) herself by writing.
Miss Rowling never really imagines a (7) audience when writing.
Miss Rowling (8) know where the ideas for the Harry Potter books came from.

CONVERSATION 2 (Questions 5-8)


The age when Miss Rowling started to write: (5) .
Miss Rowling considers herself very luck because she can (6) herself by writing.
Miss Rowling never really imagines a (7) audience when writing.
Miss Rowling (8) know where the ideas for the Harry Potter books came from.
查看答案