某同学搜集资料发现,长期或大量摄入铝元素会对人的大脑和神经系统造成损害,为此该同学提出的下列建议中错误的是( )
A:少吃油条,因为油条中含有KAl(SO4)2
B:使用铝锅时,应加醋长时间炖煮
C:使用铁锅代替铝制炊具
D:治疗胃酸过多时尽量不服用含Al(OH)3的胃舒平
如图所示3套实验装置,分别回答下列问题.
A. Is the man your father? B. No, I don't.
C. What are you going to be one day? D. What does he do?
E. Who's the man? F. Where does he work?
G. Does your father work in a car factory?
A:Hello. ____
B:Yes, he is my father.
A:____
B:He is an engineer.
B:He works in a car company. He likesdrawing pictures.
A:Do you like drawing pictures?
B:____ I like singing.
B:I'm going to be a singer one day.
如图,∠1和∠2是哪两条直线被哪一条直线所截形成的?它们是什么角?∠1和∠3是哪两条直线被哪一条直线所截形成的?它们是什么角?
下图为某高等植物叶肉细胞结构模式图,相关叙述不正确的是( )