单项选择题

When were the images of Mars taken

A．In the middle of summer on Earth.
B．In the middle of summer on Mars.
C．In the middle of summer on Earth's polar caps.
D．In the middle of summer in the northern part of Mars.

<上一题目录下一题>

热门试题

单项选择题

Which of the following is TRUE about the north polar cap of Mars in summertime

A．It is at its largest size.
B．It is changing its shape all the time.
C．It is at its smallest size.
D．It is at its windiest tim

单项选择题

When the speaker says that he simultaneously knew too much, and not enough , he means that he was ______.

A．more perceptive than others who were involved at this time
B．too close to the events to see them objectively
C．unable to see any significance in current events
D．confused by the number of important events that were taking place