一般认为，急性化脓性中耳炎病程迁延________周，中耳炎症仍然存在，就可称为慢性化脓性中耳炎。
参考答案：6～8
Li Lei isn't ____ Liu Ming. [ ]
A. tall as
B. as taller as
C. as tall as
D. as the taller as
通常说的电力指的是（）。
A.电压
B.电流
C.有功功率
D.视在功率
