单项选择题

A. Doctor and patient.
B. Husband and wife.
C. Teacher and student.
D. Tourist and guide.
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单项选择题
A. It is a large meal made by all the family members. B. It may last from two to four hours. C. It is shared in the best time of the day. D. Each member gets together and discusses many issues.
A. It is a large meal made by all the family members.
B. It may last from two to four hours.
C. It is shared in the best time of the day.
D. Each member gets together and discusses many issues.
单项选择题
A. Nuclear reactors can be of little use to people. B. Nuclear energy is dangerous as radiation. C. Nuclear energy may become a danger to human. D. Nuclear energy is useful to human being’s life.
A. Nuclear reactors can be of little use to people.
B. Nuclear energy is dangerous as radiation.
C. Nuclear energy may become a danger to human.
D. Nuclear energy is useful to human being’s life.
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