It had long been known that there iselectric field insideearth.

admin2014-01-01 50

问题 It had long been known that there is______electric field inside______earth.

选项 A、a... /
B、an ... the
C、the.../
D、an.../

答案B

解析

转载请注明原文地址:https://kaotiyun.com/show/5QFC777K

英语

相关试题推荐

随机试题

最新回复(0)