肉瘿相当于西医疾病：（）
A.单纯性甲状腺肿
B.甲状腺癌
C.甲状腺腺瘤
D.甲状腺炎
E.腮腺混合瘤
参考答案：C
填空
1. He studies English as____ (careful) as he used to.
2. I used to____ (be) unhappy.
3. She used___ (listen) to the music after finishing her homework.
4. I hate to play football. But I enjoy_ _(watch) football matches.
5. I used to hate sports ,but now I've become____ ( healthy) than before.
设备维护保养制度的仪表四率是指：（）（）（）（）。
