单项选择题


Questions 19 to 21 are based on the conversation you have just heard.

A．It may not pay well.
B．It may not come on time.
C．It may not take your goods.
D．It may charge the quote.
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单项选择题
What have Christopher Ross’ experimental results revealed to us
A．Those inheritable diseases may be cured through genetic testing.
B．Those inheritable diseases may be predicted through genetic testing.
C．Those inheritable diseases may be prevented through genetic testing.
D．Those inheritable diseases may be controlled through genetic testing.
单项选择题
A．They may be homesick and feel insecure.B．They may try to attract other people’s attention.C．They are either cold or sick.D．They want to protect themselves from physical injuries.
A．They may be homesick and feel insecure.
B．They may try to attract other people’s attention.
C．They are either cold or sick.
D．They want to protect themselves from physical injuries.
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