The tremendous heat at a star’s core, ______ tremendous gravity, joins the nuclei of hydrogen atoms.

admin2012-02-27  42

问题 The tremendous heat at a star’s core, ______ tremendous gravity, joins the nuclei of hydrogen atoms.

选项 A、combined with
B、having combined with
C、combining with
D、being combined to

答案A

解析 combined with此处表示一种一般情况,相当于when(it is)combined with,所以无需时态变化。
转载请注明原文地址:https://jikaoti.com/ti/AjSYFFFM
0

最新回复(0)