A:胆固醇是构成动物细胞膜的重要成分之一
B:硫化氢进入血浆时不需要载体蛋白的协助
C:大蒜能保护心脏的原因之一是能产生硫化氢,降低胆固醇
D:胱硫醚连接酶作用是降低核糖体中脱水缩合反应的活化能
以下商家的霸王条款中,哪一项侵犯了消费者的知悉真情权( )
A Nice Clean Plate It's Saturday evening. Bruce is having a birthday party. There are a lot of children at the party. They play together for an hour. Then Bruce's mother gives them some food. But she forgets to give Sam any. Sam feels wronged(委屈) but then he remembers his mother's words, “Be polite.(礼貌). Don't ask for food.” So he waits for a few minutes, then he holds his plate up over his head and says loudly, “ Does anyone want a nice clean plate?”
①男女生理上、心理上的差异 ②社会角色期望的不同
③社会对男性要求高,对女性要求低 ④男性豁达大度,女性斤斤计较