题干
16. Mary answered all the questions _____ the last one, which she had never heard of before.
A：beside
B：except
C：apart from
D：except for
答案(点此获取答案解析）
B
A：beside
B：except
C：apart from
D：except for
型为 Aa 的绿色植物某器官中获取组织，显微观察如右图。下列对该图示细胞的叙述正确的是（ ）