青春发育期的女孩应常吃下列何种食物以增加碘的摄入______
A．海鱼 B．瘦肉 C．水果 D．蔬菜
参考答案：A
There _____ great changes in our hometown in the past fifteen years. [ ]
A. has been
B. have been
C. was
D. were
交感性眼炎一般发生于外伤或手术后的（）
A.1～6周
B.2～8周
C.3～10周
D.4～12周
