题目

阅读理解 Xiangyu Middle School We are a bilingual school(双语学校) for children of 6—15.We want a cook,a library assistant, a sports coach(教练) and a language teacher. JobAgeLanguageSkill(技能)Other term cook25--40Chinesecan cook Chinese and western foodHealthy Library assistant20--35Chinese, Englishhave knowledge from kinds of booksCareful Sports coach20--40Chinese, EnglishMajor in P.EHealthy and strong teacher- -Chinese, EnglishMajor in（主修） English  ----- (  )1.Who can’t go to Xiangyu Middle School in the following?  A.A 4-year-old boy           B在菜豆的幼根处作上标记如右图。置于适宜条件下几天后，能正确表示该根生长情况的是