问题补充:
It is no longer a question now man can land on the moon.
A. that
B. if
C. whether
D. what
答案:
(答案→)A. that
B. if
C. whether
D. what
解析:可联系答.案.网客服索取。
时间:2018-10-11 15:42:21
It is no longer a question now man can land on the moon.
A. that
B. if
C. whether
D. what
(答案→)A. that
B. if
C. whether
D. what
解析:可联系答.案.网客服索取。