我回来咯!
1) 此题最明显的错误在於那个多添的"those". gonghao 班长对了。"those" is not necessary. 如果你还看不清楚的话,请看我增加的红字: D. apparently assisting flies to taste the hydrocarbons on prospective mates to distinguish (members of) their own species from those of other. 很明显了吧。
2)本题另一个潜在的错误是第二个 "to". 请再看下面: D. apparently assisting flies to taste the hydrocarbons on prospective mates to distinguish their own species from those of other. 这里有两个动作发出者的危险:一为flies, 二为hydrocarbons。 虽然不能说100%错,但做题时没其它错误时还是要小心把它揪出来。呵呵。。。
3) Last but not least, 750分的大奖发给。。。。。。。。。。。。。。。。。。。。。 ......................................................... gonghao!!!!!!
[此贴子已经被作者于2007-3-14 7:48:08编辑过] |