It’s uncertain______the experiment is worth doing.A、ifB、thatC、whetherD、howC

游客2023-11-20 51

问题 It’s uncertain______the experiment is worth doing.

选项 A、if
B、that
C、whether
D、how

答案 C

解析

转载请注明原文地址:http://tihaiku.com/zcyy/3203750.html

相关试题推荐

随机试题

最新回复(0)