单词拼写(共5小题;每小题1分,满分5分)

小题1:He likes playing football,and his sister likes playing the p     (钢琴).

小题2:Jessica won’t watch TV until she f     (完成)her homework.

小题3:You can borrow some books from the library,but you must r     (归还)them on time.

小题4:Daddy’s suggestion was really h     (有帮助的)for me to make a right decision.

小题5:I like a lot of vegetables,such as cabbages,carrots and t     (西红柿).

安全预评价内容不包括( )。

A．危险度评价
B．危险
C．前期准备
D．有害因素识别