治疗癃闭之浊瘀阻塞证之首选方是( )
A．补中益气汤合春泽汤 B．清肺饮 C．代抵当丸 D．沉香散 E．八正散
参考答案：C
The flood this summer caused serious ________ to the crops in Northeast China.[ ]
A. damage
B. harm
C. hurt
D. injury
我国如何进行“三大改造”的，结果如何，有何意义？
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