![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
____ with the space, the size of the earth seems not large at all.
A.Comparing
B.When compared
C.while comparing
D.When comparing
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.Comparing
B.When compared
C.while comparing
D.When comparing
A.It is more exciting than space travel.
B.It is much cheaper than space travel.
C.It is much safer than space travel.
D.It is less time-consuming than space travel.
They will stay in space for five days.
A.True.
B.False.
The issue of personal space is related to
A.religious values.
B.shyness.
C.power.
D.privacy.
A.A space rocket can only be used once.
B.The pilot can fly a space plane just like an ordinary plane.
C.A space rocket travels much faster than a space plane.
D.Both A and B.
It is difficult to send people to other planets because of ______.
A.lack of capacity of space exploration vehicles.
B.the financial expenditure involved in space travel.
C.controversial nature of space travel.
D.the uncertain future of space exploration.