When it is winter in Beijing, it's ________ in Sydney.[ ]
A. spring
B. fall
C. summer
答案:C
42与35的和,再乘以它们的差,积是多少?
动物死亡2~4h后于尸体倒卧侧皮肤发生的坠积性淤血现象,称为()
A.尸冷
B.尸僵
C.尸斑
D.尸溶
E.尸腐