印刷用润湿液在实际使用中电导率控制在多少时比较理想而实际的。（）

A:200us/cm~500us/cm B:400us/cm~700us/cm C:800us/cm~1500us/cm D:2000us/cm~3000us/cm

扩展CP的时长为（）

A:4.7us B:5.2us C:33.3us D:16.7us

A:us all B:all of us C:in us all D:for us all

______ agrees to your plan.

A:Anyone of us B:No one of us C:None of us D:Someone of us

3GPP达成结论NR基本业时间同步精度要求达到 參少？

A:优于3us（±1.5us） B:优于5us（±2.5us） C:优于1us（±0.5us） D:优于10us（±5us）

It is dangerous ____with the animals .

A:for us to play B: of us playing C:for us playing D: of us to playing

It is dangerous _______ football on the roaD.

A:for us to play B: of us playing C:for us playing D:of us to play

Would you explain _____?

A: the meaning to us B: us the meaning C: us to the meaning D: the meaning us

She was more headstrong than ______. 　

A: the rest of us 　 B: us the rest 　 C: the other of us 　 D: us the other