单项选择题

A．Because they are not accustomed to it.
B．Because they are not psychologically prepared for it.
C．Because their genes differ from those who have been tested for it.
D．Because they arc less sensitive to it than those who have been tested for it.
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单项选择题
A．He sent surgeons to serve in the army.B．He provided soldiers with medical supplies.C．He recruited volunteers to care for the wounded.D．He helped to flee the prisoners of war.
A．He sent surgeons to serve in the army.
B．He provided soldiers with medical supplies.
C．He recruited volunteers to care for the wounded.
D．He helped to flee the prisoners of war.
单项选择题
A．He disliked being disciplined.B．He was expelled by the university.C．He couldn’’t pay his gambling debts.D．He enjoyed working for a magazine.
A．He disliked being disciplined.
B．He was expelled by the university.
C．He couldn’’t pay his gambling debts.
D．He enjoyed working for a magazine.
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