如果长期使用免疫抑制剂易出现的不良后果是:()
A. 感染和超敏反应发病率增高
B. 感染和肿瘤发病率增高
C. 感染和自身免疫病发病率增高
D. 患超敏反应和自身免疫病发病率增高
E. 患超敏反应和免疫缺陷病发病率增高
免疫抑制剂不适用于下列哪种情况()
A. 艾滋病
B. 类风湿关节炎
C. 系统性红斑狼疮
D. 抗移植排斥反应
E. 超敏反应性疾病
1. The manager,as well as his advisers,___________ to attend the world fair.
A. are agreed
B. were agreed
C. have agreed
D. has agreed
2. Each of you _________ responsible for the accident.
A. am
B. be
C. is
D. are