______more than 100 elements are known to us, only 25 of them are common and important.

admin2010-07-11  39

问题 ______more than 100 elements are known to us, only 25 of them are common and important.

选项 A、Although
B、If
C、Because
D、Since

答案A

解析
转载请注明原文地址:https://jikaoti.com/ti/ncJGFFFM
本试题收录于: 英语题库普高专升本分类
0

随机试题
最新回复(0)