大叶性肺炎实变期叩诊音为（）。
A.空瓮音
B.实音
C.浊鼓音
D.过清音
E.鼓音
参考答案：B
—Will $ 2,000 _______ the cost of the trip?
—I’m afraid not. Perhaps I need another $500.
A．pay
B．charge
C．cover
D．afford
