题目内容

钢结构材料常用的切割方法有( )。

A. 机械剪切
B. 气割(正确答案)
C. 等离子切割(正确答案)
D. 线切割(错误答案)

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钢结构涂装施工应在除锈后_________h内进行,严禁在表面无处理且有污染、赃物、浮锈的情况下进行涂装作业。

A. 2
B. 4
C. 6
D. 8

In US children goafter kindergarten.

A. Elementary school
B. Primary school
C. Nursery
Daycare

In UK they also call secondary school a

A. Uni
B. University
C. college
D. institution

When you recieve a, everyone has to call you "doctor".

A. master's degree
B. Medical degree
C. Bachelor's degree
D. Ph.D