成人重度贫血常合并贫血性心脏病。()
参考答案：错
Do not feel _____ of her success. You should know that's all through hard work. [ ]
A. disappointed
B. jealous
C. satisfied
D. content
示范操作是一种( )、简练、通用的教学形式。
A．直观
B．简明
C．实际
D．快捷
