单项选择题

Seen from space, our earth, with water covering 70% of its surface, appears as a "blue planet".（）

A．如果从太空中看地球的话，地球像一个蓝色的行星，而且地球的表面70%都是水。
B．地球表面的70%都被水覆盖着，从太空中看地球，它就像一颗蓝色的行星。
C．从太空上看我们的地球，它的表面的70%都被水覆盖着，看上去像一颗蓝色的行星。
D．从太空中看到地球的表面的70%都是水，它是一个蓝色的行星。

<上一题目录下一题>

热门试题

单项选择题

What were those American women tested for during the whole month（）

A．For the selection of the responsible persons.
B．For the condition of different group of the women.
C．To see if they were suitable for the space work.
D．To see how they would react to conditions like those aboard the space shuffle.

单项选择题

Which of the following statements is TRUE（）

A．They had to stand under the pressure three times the force of gravity.
B．Ten days later in the test, they had to spend other twenty days in bed.
C．During the whole test, they suffered backaches and other discomforts.
D．Some of the women suffered great loss of calcium.