简要说明影响风险评价方法选择的因素类型。
参考答案:
A.开展评价的动机
B.所需评价结果的类型
C.可用于评价的信息类型
D.所分析问题的特征
E.已发觉的与评价对象有关的风险
With the development of industry, the problem of pollution was ______ from the very beginning, but no one cared about it until the late 1800s.
A.solved
B.absent
C.present
D.lacking
适用于少量药液,一般少于2ml的可用以下哪种给药途径
A.口服
B.皮下注射
C.肌内注射
D.静脉注射
E.蛛网膜下隙注射