单项选择题

Besides its main mission, the orbiter would also be used as

A．a medical research center.
B．a space station.
C．a space ambtulance.
D．a passenger plan
<上一题 目录 下一题>
热门 试题

单项选择题
We learn from Paragraph 2 that ______.
A．celebrity moms are a permanent source for gossip.
B．single mothers with babies deserve greater attention.
C．news about pregnant celebrities is entertaining.
D．having children is highly valued by the publi
单项选择题
The best title for this passage would be ______
A．Human Space Exploration
B．A New Craft Would Replace Shuttles
C．Space Launch Initiative
D．Orbital Space Plane
相关试题