Unlike frogs that metamorphose from tadpoles into adults within a one-year period, it takes three to four years for the mountain yellow-legged frog of the Sierra Nevada to reach adulthood, and so they are restricted to deeper bodies of water that do not dry up in summer or freeze solid in winter.
(A) it takes three to four years for the mountain yellow-legged frog of the Sierra Nevada to reach adulthood, and so they are
(B) it takes the mountain yellow-legged frog of the Sierra Nevada three to four years until it reaches adulthood, and therefore it is
(C) in the Sierra Nevada, mountain yellow-legged tree frogs take three to four years to reach adulthood, thus being
(D) mountain yellow-legged frogs of the Sierra Nevada take three to four years until they reach adulthood, thus
(E) mountain yellow-legged frogs of the Sierra Nevada take three to four years to reach adulthood, and so they are 作者: shiwen66666 时间: 2009-12-6 17:40
顶~作者: yidiyuehan 时间: 2009-12-6 18:40
and so 我觉得 只能记住了.
What this means for you, the student, is that it’s a complete waste of time for you to question any official answer to a problem published by GMAC. Indeed, the only appropriate response to a correct answer that you find surprising, illogical, or “ugly” is this: “Wow, that’s unusual. I guess I’ll have to recalibrate the way I think about that, because now I know I can do _____.” Again, this is the ONLY way to respond to surprising constructions, solutions, and so on in officially correct answers. If you respond by questioning or doubting the validity of such answers, or, worse yet, actively trying to dispute that validity, then you are at best sidelining your studies with needless detours, and at worst confusing yourself.
On official problems, correct answers are correct. That’s it.
There may be answers that you don’t like – I, for one, have been positively disgusted by a few of the officially correct SC answers I’ve seen – but you’ve got to learn to play by GMAC’s rules.作者: shiwen66666 时间: 2009-12-6 18:55
明白了~~many thanks！