长期卧床病人皮肤系统无以下哪种变化()。
A.萎缩
B.压疮
C.白化病
D.角化
E.水肿
参考答案:C
One thing’s for sure, the fire _____by some cigarette butts.
A.might cause
B.could have caused
C.must have been caused
D.should be caused
脑膜型鼠疫尤为适宜()
A.抗毒素+青霉素
B.红霉素
C.青霉素
D.利福平+多西环素
E.氯霉素