因税务机关的责任,致使纳税人、扣缴义务人未缴或少缴税款的,税务机关可以在()年内要求纳税人、扣缴义务人补缴税款。
A.3
B.5
C.10
D.1
参考答案:A
— Where is David?
— I think he ______ Australia. [ ]
A. has gone to
B. has been
C. has gone
D. has been to
输油泵的类型有()、()、()和()等几种。