高压开关合闸后，红色指示灯不亮，原因可能为（）。
A、合闸回路断路
B、灯泡附加电阻短路
C、切闸回路断路
D、主回路没合上
参考答案：C
—What does he ______?
—He is short. He has a big mouth and short legs. [ ]
A. looks like
B. look
C. looks
D. look like
腺样体肥大可引起分泌性中耳炎。（）
