关于植物激素的叙述，不正确的是（　　）

    Jim Green is a student in No. 5 Middle School. He does a part-time 1because he needs some2. He works in a supermarket after3from Monday to Friday and all4on Saturday. He helps people look after their kids and he plays 5kids. He thinks it is great6. After school, he7a bus to the supermarket. He8there at about 4: 30. He works94: 30 to 8: 30. He gets 10 at 9: 30. Jim likes his job very much.

当今国际竞争的实质，是以经济和科技实力为基础的综合国力的较量。所以我们要努力成为国家需要的人才。（   ）

消化系统是由____和____两部分组成。