不需要泪奔跪求啊,你这标题党然后还不贴自己“泪奔跪求”的pp,属于dishonest行为! The ?ve have so many simultaneous effects thatthis is just explaining what is pleotropic - each of the five hormones has many simultaneous effects. (draw a diagram: each hormone has multiple downstream effects; therefore, if one hormone level is up, the downstream pathways associated with this particular hormone are simultaneously activated.) I think you mistake "simultaneous" for "interdependent". These two meanings are totally different.
Unlike the oligosaccharins, the ?ve well-known
(15) plant hormones are pleiotropic rather than specific; that is, each has more than one effect on the growth and development of plants.The ?ve have so many simultaneous effects thatthey are not very useful in arti?cially controlling the growth of
(20) crops
我把需要看的地方摘了出来,然后咱们看这道题哈: According to the passage, the ?ve well-known plant hormones are not useful in controlling the growth of crops because
2,each hormone has various effects on plants 3,none of the hormones can function without the others
我知道2对,但我想知道为什么3错~~~
(ps:附上自己的理由:我认为,“The ?ve have so many simultaneous effects”,的意思就是:这五个h同时作用。那3中的意思不就是说:没有5个中的一个,就不能起作用 ~~这不是和“这五个h同时作用”一个意思吗?) 求nn指点一下我这题,膜拜了先~~~~-- by 会员 bob9603 (2012/5/8 21:08:55)
-- by 会员 babybearmm (2012/5/9 3:32:00)
bob,baby姐姐的英文解释好好看,我握爪支持O(∩_∩)O哈! |