调研员是对应于()。
A.厅、司级副职
B.县、处级正职
C.县、处级副职
D.乡、处级正职
参考答案:B
计算:(x2)4÷x5x=_________.
“How about John?”“My uncle ______a good student.”
A.believes John
B.considers John
C.suggests John
D.knows John