水痘的临床特点是()
A.潜伏期5~7天
B.热退后全身出疹
C.皮疹呈斑疹、丘疹、疱疹、结痂并存
D.皮疹常有融合
E.疹退后皮肤留有棕色色素沉着
参考答案:C
Don't drink ____ water. There is no washroom on the bus.
[ ]
A. too much
B. much too
C. too many
D. many too
下列抗病毒药物属于阿昔洛韦的前体药物的是
A.伐昔洛韦
B.更昔洛韦
C.利巴韦林
D.金刚烷胺
E.齐多夫定