对于室温下的双原子分子理想气体,在等压膨胀的情况下,系统对外所做的功与从外界吸收的热量之比A/Q等于:()
A.1/3
B.1/4
C.2/5
D.2/7
参考答案:D
In the spoken English of some areas in the US, the "r" sounds at the end of the words__________.
A.are dropped
B.drop
C.are being dropped
D.have dropped
郁病的发生,其主要受累脏腑是()
A.心
B.肺
C.肝
D.脾
E.肾