判断一个渠道交替方案的好坏的标准是其能否导致较高的销售额和成本。
A. 对
B. 错
The earth () aroud the sun.
A. is moving
B. moves
C. move
D. moved
The train () at six tomorrow morning.
A. leaves
B. leave
C. left
D. is leaving
If you () the job, they will talk with you in greater details
A. will take
B. took
C. take
D. is taking