题目

    Hey, don't read in the hallway. Your eyesight will be damaged. You must have heard such warnings many times. “Don’t read in poor light!” This is one of the common beliefs that are supposed to help us live a healthy life. Such beliefs are, however, without scientific basis(根据), according to a paper published recently in the British Medical Journal.    Do you believe in the following sayings?    Reading in poor light ruins your eyesight.    In poor light, you might blink (眨眼) more, suffer from drying and have trouble focusing. But most of eye experts believe it植物生命活动的调节主要依靠五大类激素完成,以下有关说法错误的是A.生长素可由色氨酸转化生成,该过程受基因控制B.高浓度的生长素抑制植物生长,可能是因为其诱导了乙烯的合成C.植物激素可由产生部位运输到作用部位,但在运输方向上只能进行极性运输D.同一部位的细胞可能含多种不同的植物激素,共同配合调节植物的生命活动
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