问题
选择题
The driver can adjust the heating in winter and the air conditioning in summer to suit his own ______.[ ]
A. leisure
B. preference
C. convenience
D. selection
答案
答案：B
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The driver can adjust the heating in winter and the air conditioning in summer to suit his own ______.[ ]
A. leisure
B. preference
C. convenience
D. selection
答案：B
类镇静催眠药的特异性治疗药物是（）