题目内容

燃气管道连接时，必须采用（）连接。

A. 电熔
B. 热熔
C. 卡箍
D. 法兰

查看答案

搜索结果不匹配？点我反馈

更多问题

[A] quiz
[B] subject
[C] notes
[D] extracts

The word "progressive" in the second line of the last paragraph probably refers to______
[A] moving
[B] improved
[C] beneficial
[ D] better

A suitable title for this passage is__________
[A] The good aspect of coffee
[B] Coffee and cancer
[ C] The introduction of coffee
[D] Coffee and disease

有A、B、C三支球队进行循环赛，每两队之间各赛一场，胜一场得3分，平一场得1分，负一场得0分。已知A队总进球数为0，平了1场；B队净胜球数为-2，胜了一场。则C队得了（）分。