China’s Chang’e 4 robotic probe entered lunar orbit on Wednesday, ________ a maj

题干

China’s Chang’e 4 robotic probe entered lunar orbit on Wednesday, ________ a major step in its mission to make a soft landing on the moon’s far side.

A．marking	B．to mark
C．having marked	D．marked

上一题下一题 0.65难度单项选择更新时间:2019-03-06 02:03:49

小学学科试题库

初中学科试题库

高中学科试题库