There _____________ some milk in the bottle. [ ]
A. are
B. is
C. has
D. have
答案:B
男,38岁,经理,2周前有婚外性行为,3天前 * * 刺痒、刺痛,查 * * 口轻度红肿, * * 分泌物呈浆液性,少许。此例病人首先考虑诊断()
A.淋病
B.生殖器疱疹
C.梅毒
D.软下疳
E.生殖道衣原体感染
放样实体操作中截面连接的类型有()
A.相切
B.比例
C.弯曲时相切
D.顶点