骨髓瘤的好发部位是()
A．颅骨
B．脊柱
C．肋骨
D．骨盆
E．胸骨
参考答案：A, B, C, D, E
1. strength
A. northern B. wealth C. smooth D. breathe
2. lecture
A. physics B. medicine C. accept D. official
3. single
A. advantage B. spoon C. dangerous D. handkerchief
4. lead
A. break B. peace C. great D. breakfast
5. complete
A. cover B. continent C. contain D. conversation
注意缺陷多动障碍不包括（）
A.注意力涣散
B.活动量过多
C.自制力弱
D.发育矮小
E.品行异常
