病人死亡后，随着生物学死亡期的进展尸体最先出现的现象是（）
A.尸僵
B.尸斑
C.尸冷
D.尸僵缓解
E.尸体腐败
参考答案：C
主板又称母板，其中包括CPU、存储器、______插槽以及电源等。
– Do you know what has happened in Japan recently?
-- The earthquake! It’s _____ one that I have ever heard of.
A. a very serious B. a more serious C. the most serious
