既治脾肺气虚证、又治热病伤津及心神不安，宜选
A．白术
B．山药
C．人参
D．黄芪
E．以上均是
参考答案：C
In cities in China, ______ bus is ______ popular means of transportation.
A．a; the
B．a; /
C．the; a
D．the; the
