类白血病反应的病因是（）
A.感染
B.癌肿
C.中毒
D.溶血
E.炎症
参考答案：A, B, C, D, E
The Titanic was a ship just not ______to run into icebergs. When it did,nothing could stop it. [ ]
A. design
B. to design
C. designed
D. designing
下列选项中哪个不是民族文化资源的特点（）。
A、融合性
B、地域性
C、独特性
D、创新性
