每张国际回信券只能兑换相当于一封()克的国际航空平常信函最低邮资的邮票。
A.10
B.20
C.30
D.50
参考答案:B
情绪的三个组成部分是指()
A.主观体验
B.生理唤醒
C.外部行为
D.快乐感
E.痛苦感
The () describes, in detail, the project's deliverables and the work required to create those deliverables.
A.project scope statement
B.project requirement
C.project charter
D.product specification