单项选择题

Questions 23 to 25 are based on the conversation you have just heard.

A．They studied variations in the appearance of the parent stars.
B．They were able to see the planets with a telescope.
C．They compared the parent stars to the Sun.
D．They sent astronauts on a mission into space.
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单项选择题
[A] The woman could probably repay it herself. [C] It probably won’t cost a lot to repair. [B] It’s rather small. [D] It’s probably difficult to drive.
[A] The woman could probably repay it herself. [C] It probably won’t cost a lot to repair.
[B] It’s rather small. [D] It’s probably difficult to drive.
填空题
The diversity of wild chimps’ behaviors suggests that there are distinct ape cultures.
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