肝细胞碎片状坏死或桥接坏死见于（）
A.急性重型肝炎
B.亚急性重型肝炎
C.慢性活动性肝炎
D.慢性迁延性肝炎
E.急性普通型肝炎
参考答案：C
Not only late, he also forgot his book.
A．had he turned up
B．he had turned up
C．he turned up
D．did he turn up
项目质量控制系统的运行机制的核心是( )。
A．动力机制
B．约束机制
C．反馈机制
D．考核机制
