重度哮喘的处理是（）。
A.补液
B.吸氧
C.氨茶碱滴注
D.注射西地兰
E.给予糖皮质激素
参考答案：A, B, C, E
She ______ as an animal trainer since 2003. [ ]
A. has worked
B. works
C. will work
D. worked
乳腺癌最常见的病理组织学类型是
A．鳞状细胞癌B．浸润性导管癌C．浸润性小叶癌D．髓样癌E．湿疹样癌
