麻烦裸机的考古下 太太乐里的螃蟹和鸟

苏尛涵fiona

关于JJ里67题  螃蟹和鸟的那道题 说是靠support的。。
GWD17-Q34有道类似的 望考古~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

DuringthemonthofMay, crabs arrive on Delaware's beaches to lay eggs.Certain shorebirds depend on these eggs for food duringtheir 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 ofthe 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.

xie8910

应该不是，昨天狗主贴这个的时候我问了，他说本来看到以为是这道很高兴，看下去发现不是

vei0131

我昨天考的時候也以為是這題 結果不是

題目好像是在說 如果螃蟹population is too dense, they will dig up crabs eggs for space for their own..之類的 所以鳥才有得吃, 然後最近有別的地區的海邊剛做完cleanning. what conclusion can be drawn? 我選了A 反正就是說可以給鳥吃的Eggs會變少之類的 這題應該不會太難