下列药物中，有毒的药物是（）
A.全蝎
B.蜈蚣
C.僵蚕
D.桃仁
E.罗布麻
参考答案：A, B, D, E
进行妇科检查时，下列哪些是正确的（）
A.盆腔检查前应首先排空膀胱
B.每检查一个病人更换臀部下面的垫纸
C.有 * * 流血严禁行妇科检查
D.避免经期行妇科检查
E.未婚者严禁行妇科检查
John often finds herself daydreaming about boy’s and wondering what her life will be like when she gets married. According to Piaget, John is likely in which stage()
A．Sensorimotor stage
B．Preoperational stage
C．Concrete operational stage
D．Formal operational stage
