问题补充:
This old computer must have been of great use to did the scientific research.
A. those
B. when
C. whoever
D. whomever
答案:
A. those
B. when
(答案→)C. whoever
D. whomever
解析:可联系答.案.网客服索取。
时间:2018-09-15 05:28:56
This old computer must have been of great use to did the scientific research.
A. those
B. when
C. whoever
D. whomever
A. those
B. when
(答案→)C. whoever
D. whomever
解析:可联系答.案.网客服索取。