问题
多项选择题 X型题
引起青霉素过敏反应的因素有 ()
A.微量青霉烯酸
B.溶媒
C.青霉噻唑酸
D.剂量
E.青霉素聚合物
答案
参考答案:A, C, E
引起青霉素过敏反应的因素有 ()
A.微量青霉烯酸
B.溶媒
C.青霉噻唑酸
D.剂量
E.青霉素聚合物
参考答案:A, C, E
读下面一段短文,根据上下文意思用方框内所给词或短语填空;选项中有一个多余选项。 | |
he _________ (2) the elevator, it broke and he was trapped (受困的). The man tried to __________ (3) for help, but it was a holiday so no one was in the building. He ___________ (4) staying in the elevator for more than sixty hour __________ (5) any food or water. |