Some researchers believe that there is no doubt _______ recycling saves energy a

游客2024-09-14  15

问题 Some researchers believe that there is no doubt _______ recycling saves energy and raw materials, and reduces pollution.

选项 A、which
B、that
C、what
D、whether

答案 B

解析 句子结构分析题。名词doubt“怀疑”后的同位语从句用whether连接,如:There is some doubt whether he can recover from the serious disease.在no doubt“不怀疑”之后的同位语从句用that连接。答案为B。
转载请注明原文地址:https://tihaiku.com/zcyy/3757721.html
最新回复(0)