以下有关甲状腺未分化癌的描述，正确的有：（）
A．好发于老年人
B．比较常见
C．恶性度高，预后差
D．年轻女性好发
E．以上都不正确
参考答案：A,C
根据句意和首字母提示补全单词。
1. Yao Ming enjoys his s________ life very much.
2. My parents won't a________ me to stay out late.
3. The Chinese football team played a________ the Japanese football team last night.
4. Mr Brown was worried because his company was facing t________ competition.
5. I'm sure our class will d________ Class Three in the basketball match.
乌药的归经为
A．肝、胃经
B．肺、脾、肾、膀胱经
C．肺、脾、肾经
D．脾、胃、肺经
to stay out late. 
the basketball match.