乙型脑炎时出现（）
A．凝固性坏死
B．干酪样坏死
C．液化性坏死
D．溶解坏死
参考答案：C
The earthquake which happened in YuShu _____ 14th April 2010 was a big disaster. [ ]
A. at
B. on
C. in
D. to
调节红细胞生成的物质是 ( )
A．铁和蛋白质B．内因子C．维生素KD．维生素B12和叶酸E．促红细胞生成素
