标题: 有一到逻辑考到GWD原题! [打印本页] 作者: dongdong01 时间: 2012-11-16 23:34 标题: 有一到逻辑考到GWD原题! During the month of May, crabs arrive on Delaware's beaches to lay eggs. Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds. Delaware's crab population has declined recently. This decline, however, poses no serious threat to the migrating shorebird populations: by remaining longer in Delaware, the birds will be able to eat enough crab eggs to allow them to complete their migration.
Which of the following, if true, most seriously weakens the argument? A.No other food available to the birds on Delaware's beaches is as nutritious and accessible as are crab eggs.B.The decline in the number of crabs on Delaware's beaches is due to the harvesting of crabs by humans.C.There are more crabs on Delaware's beaches than in any other area that the migrating birds pass through.D.The crabs do not conceal their eggs.E.The earlier in the season the shorebirds complete their migration, the more likely they are to breed successfully. 选E作者: zxfjacob 时间: 2012-11-17 00:15
召唤妹纸~~~~收狗喽！！！作者: alicezyk 时间: 2012-11-17 00:49
激动！！！！！！！！作者: yiyi580702 时间: 2012-11-17 00:51
恩，这个题目记得的。thx lz作者: 潇水若木 时间: 2012-11-17 06:50
thx作者: yoyorongqu 时间: 2012-11-17 10:07
顶！作者: ielaine0828 时间: 2012-11-17 12:14
逻辑14已收录哦~~~ 谢谢楼主~~~~~~~