单项选择题

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

A．Individual humans share 90 percent of their DNA.
B．Individual humans share 99.9 percent of their DNA.
C．Individual humans share 99 percent of their DNA.
D．Individual humans share 80 percent of their DNA.
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单项选择题
A．To discuss the second essay.B．To get the comments on TV news.C．To plan to join TV news programs.D．To tell the difference of TV news.
A．To discuss the second essay.
B．To get the comments on TV news.
C．To plan to join TV news programs.
D．To tell the difference of TV news.
单项选择题
A．To remind the woman to lock the door when going out.B．To remind the man to take his keys when going out.C．To prevent the thief to break into when going out.D．To prevent visitors from having an accident.
A．To remind the woman to lock the door when going out.
B．To remind the man to take his keys when going out.
C．To prevent the thief to break into when going out.
D．To prevent visitors from having an accident.
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