工程咨询服务收费采用人月费单价法时,不可预见费通常取酬金和可报销费用之和的()。
A.10%~20%
B.10%~l5%
C.5%~l5%
D.5%~l0%
参考答案:C
关于下列图片的说法正确的是 ( )
— _____ you disturb her with these annoying questions just when she was busy cooking dinner?
— Sorry, I _____ that at that time. [ ]
A. Should; must not have done
B. Shall; may have done
C. Must; should do
D. Must; should not have done