题目内容

熔化焊焊接时,不适于焊接1mm以下薄钢板的焊接方法是()。 A.钢丝短路过渡法CO2气体保护焊 B.等离子弧焊 C.埋弧焊 D.钨极气体保护焊

查看答案
更多问题

A) influence B) impose C) impact D) impress

一般高层建筑、大型民用建筑物、居住小区和其他大型给水系统应设置备用泵,备用泵的设置要求为()。

空调工程冷却水系统中,为保证水泵入口不发生空蚀现象,应在循环泵和除污器之间装设()。 A.管道泵 B.缓冲器 C.冷水箱 D.减压阀

What do we learn about PepsiCo and Disney from the passage? A) Lindstmm was inspired by them to write a book. B) They get marketing advice from Lindstrom. C) Lindstrom helps them to go through hard times. D) They attribute their success to Lindstrom.

答案查题题库