根尖结构中，根伸长最快的部位是（  ）

下列有关生长素的叙述,不正确的是（   ）

Dear John,

    How are you? Nice1 you. From your letter I know a lot about you and your school. Now let me2 something about me and my school.

    I am thirteen years old. I am 3 Class Two, Grade One. My father is a teacher. He is my 4English teacher. My mother is a doctor. I have a sister.5 are in the same school. We can sing(唱) many songs6 English.

    This is my classroom.7have a class photo on the wall. But can you see 8photo? It's at the door. In the classroom 9 our desks and chairs. Mrs. Green is our head teacher.10 is very kind(友好).

    Please come and have a look at our school if you are free.

Millie

2014年4月13日，某中学初三650名学生参加了中考体育测试，为了了解这些学生的体考成绩，现从中抽取了50名学生的体考成绩进行了分析，以下说法正确的是（   ）