问题
单项选择题
不容许风险档的危险性值应大于( )。
A．180
B．240
C．320
D．460
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
不容许风险档的危险性值应大于( )。
A．180
B．240
C．320
D．460
参考答案：C
| 任务型阅读 | ||||
Welcome to our school. You can do a lot of things here. Come and join us.
| ||||
| 1. Peter likes inventing little things, he may have a chance to introduce his inventions on ______. 2. The person who teaches Computer Science is from _______(country). 3. We can learn something about a disease called TB from ____________. 4. If you want to learn something about satellites, you can go to the class from on Monday ____. 5. Tom wants to know how to use Windows XP, he can turn to _________. |