—Would you like some coffe or orange?

—_____, thanks. I'm not thirsty. I just want to have a rest. [ ]

A. Either

B. Both

C. Neither

D. None

签订绩效契约时，可能面临的问题有（）。

A.客观环境不变

B.临时性工作减少

C.上司更换频繁

D.契约能准确反映工作要求