地龙具有的功效是
A．熄风、止痛
B．攻毒、散结
C．定惊、利尿
D．祛风、通络
E．消痰、行水
参考答案：C
. Tom said he had been working for three hours, ________, evidently, was untrue.
A．he
B．this
C．which
D．it
提升润滑系统的作用是什么？
