下列动物属于雌雄异体的是（）。 ["A.柄海鞘和文昌鱼 ","B.文昌鱼和七鳃鳗 ","C.盲鳗和柄海鞘 ","D.盲鳗和七鳃鳗"]
Client exclusion policies are used to mitigate which of the following attacks？（） ["dictionary","bit-flip and replay","mac spoofing","man-in-the-middle"]
职业卫生所谓的缺氧环境，是指空气中氧气体积浓度低于（）%的环境。 ["14","16","18"]
按照数据的性质可分为（）。 ["A.定性数据 ","B.定量数据 ","C.原始数据 ","D.二手数据"]
根据有关司法解释，假冒两种以上注册商标，（）在3万元以上的，应予追诉 ["违法所得数额","销售数额","非法经营数额","非法获利数额"]
均匀形核
