信息技术教材教法的特点有综合性、独立性、（）和发展性。
A.实践性
B.理论性
C.技术性
D.艺术性
参考答案：A
In doing Chinese-English translation, the translator may run into more difficulties than English-Chinese translation.
A．than in English-Chinese translation
B．than in doing English-Chinese translation
C．than doing English-Chinese translation
D．than to do English-Chinese translation
全血细胞减少，骨髓增生低下，造血细胞减少，这种血象及骨髓象不见于（）
A.再障
B.低增生性白血病
C.溶血性贫血
D.PNH
E.骨髓纤维化
