单侧肺透亮度增加，可见于（）
A.肺含铁血黄素沉着病
B.Macleod病
C.镰刀综合征
D.乳癌根治术后
E.脊柱侧弯
参考答案：B, C, D, E
A．电压表的量程太大
B．电流表的量程太大
C．电源电压太低
D．变阻器的电阻太大
用所给单词的适当形式完成句子。
1. The old man often makes a _ (speak) in our school.
2. The chairman looked _ (ordinary) than we thought.
3. Playing games online is (harm) to your study.
4. Many scientists are trying to explain the (disappear) of the dinosaurs.
5. Although I am your friend, I _ (agree) with your wrong idea.
