搜题请搜索小程序“爱下问搜题”
问题 单项选择题

照射量的SI单位是

A．C·kg-1(库伦每千克)

B．R(伦琴)

C．居里

D．mR/h

E．Gy(戈瑞)

答案

参考答案：A

解析：
照射量的SI单位是C·kg-1(库伦每千克)。

单项选择题

下面的图像格式中，（）不支持透明控制信息。

A．GIF

B．PNG

C．PSD

D．JPG
查看答案
听力题

请根据句子意思，按照首字母或中文提示，填入恰当的单词，补全句子。

1. Will you_________________(支持) me in my campaign for election?

2. He’s involved in the _______________ (组织）of a new club.

3. She was ashamed of her children’s bad ___________________(举止).

4. He fell in the water, much to the __________________________(开心) of the children.

5. Did you________________________(传递) my message to my father?

6. Do you know when India gained ________(独立) from Britain?

7. We need both competition and _________________(合作).

8. Please find out the foods that give fibre for ______________(消化) and health.

9. You can tell from her __________（外表） that she has been ill.

10. Dogs are not ___________ （允许） in the building.
查看答案