沙眼引起上睑下垂的主要原因有
A．睑结膜及睑板肥厚
B．动眼神经麻痹
C．Miiller肌受病变侵袭
D．重症肌无力
参考答案：A, C
Some of the drivers were ______ by the police because of their good behavior in the traffic accident.
A．examined
B．questioned
C．praised
D．punished
对城市历史文化遗产进行保护的使用价值，具体包括哪几个方面？（）
A.经济价值
B.外交价值
C.社会价值
D.政治价值
