For_____new or existing buildings, solar water heating is the most cost-effectiv

游客2025-06-18 1

问题 For_____new or existing buildings, solar water heating is the most cost-effective way to reduce your fuel bills.

选项 A、neither
B、nor
C、or
D、either

答案 D

解析应当选择与or搭配使用的either。

转载请注明原文地址:https://tihaiku.com/zcyy/4123186.html

相关试题推荐

随机试题

最新回复(0)

Iftheteacherhadcaughtthemcheating,shewould______furious.A、hadB、havedon