下列哪种疾病常常无骨膜反应（）
A.内生软骨瘤
B.慢性化脓性骨髓炎
C.骨肉瘤
D.动脉瘤样骨囊肿
E.尤因（Ewing）肉瘤
参考答案：A
根据句意和空缺处所给首字母写单词。
1. —What time do you get up in the morning? —I get up at a q____ past six.
2. My father is a d____. He works in a hospital.
3. I want to b____ a skirt for my daughter.
4. —Does your brother have a r____ face? —Yes, and he has small eyes.
5. Please look a____ your sister at home.
A．I有=3/2A，Im=3A
B．I有=3A，I有=3A
C．I有= A，I有 A
D．I有3A，Im=6A
/2
