对免疫过程的多个环节有抑制作用的药物是
A.环孢素B.环磷酰胺C.肾上腺皮质激素D.硫唑嘌呤E.抗淋巴细胞球蛋白
参考答案:C
为了调查某市慢性病的分布情况,对3个区8个不同地段抽取50岁及以上的老人共5800人进行调查。
该调查可计算()
A.发病专率
B.罹患率
C.患病率
D.存活率
E.发病率
For our both benefit, we are grateful to you for thinking about our suggestion.
A. our both benefits B. the benefits of both of usC. our benefits of both D. our benefits of our two sides