题干
. I still remember/will never forget the day ________ I first came to the college.
A：which
B：in which
C：on that
D：on which E) in that
答案(点此获取答案解析）
D
A：which
B：in which
C：on that
D：on which E) in that
mol／L的生长素会抑制该植物茎段的生长；②该植物茎中生长素含量达到M值时，植物开始合成乙烯；③该植物茎中乙烯含量的增加会促进生长素的合成；④该植物茎中生长素和乙烯的含量达到峰值是不同步的