问题
单项选择题
脱氢反应系统充压置换时，卸压至（）较为合适。
A.0MPa
B.0.05MPa
C.0.1MPa
D.0.15MPa
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
脱氢反应系统充压置换时，卸压至（）较为合适。
A.0MPa
B.0.05MPa
C.0.1MPa
D.0.15MPa
参考答案：A
| 完形填空. | |||
| It's __1__ in France. The weather is __2__ and __3__ . Old people don't want to go out in such cold days. People are wearing __4__ and scarves. But everyone is __5__ a good time. Friends are __6__ in restaurants. In the __7__, a musician is __8__ the guitar, and some boys __9__ playing soccer. One man is __10__ a photo. | |||
|