问两题逻辑题哈，谢谢大家~~~

valerialam

1、Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg. If they laid too many eggs in a host egg, the developing wasp larvae would compete with each other to the death for nutrients and space. If too few eggs were laid, portions of the host egg would decay, killing the wasp larvae.Which of the following conclusions can properly be drawn from the information above?

(A) The size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp’s egg-laying behavior.

(B) Host insects lack any effective defenses against the form of predation practiced by parasitic wasps.

(C) Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species.

(D) Failure to lay enough eggs would lead to the death of the developing wasp larvae more quickly than would laying too many eggs.（A）

(E) Parasitic wasps use visual clues to calculate the size of a host egg.

2、For a local government to outlaw all strikes by its workers is a costly mistake, because all its labor disputes must then be settled by binding arbitration, without any negotiated public-sector labor settlements guiding the arbitrators. Strikes should be outlawed only for categories of public-sector workers for whose services no acceptable substitute exists.The statements above best support which of the following conclusions?

　　（A） Where public-service workers are permitted to strike, contract negotiations with those workers are typically settled without a strike.
　　（B） Where strikes by all categories of pubic-sector workers are outlawed, no acceptable substitutes for the services provided by any of those workers are available.
　　（C） Binding arbitration tends to be more advantageous for public-service workers where it is the only available means of settling labor disputes with such workers.
　　（D） Most categories of public-sector workers have no counterparts in the private sector.（C）
　　（E） A strike by workers in a local government is unlikely to be settled without help from an arbitrator

还有一道语法题：

most of Portugal's 250000 university students boycotted classes in a one-day strike to protest a law that requires them to contribute $330 a year toward the cost of higher education,previously paying $7 per year.
A、a year toward the cost of higher education,previously paying $7 per year

B、a year toward the cost of higher education,for which was previously paid $7 per year.                                  

 C、a year,compared to the previously $7 per year,toward the cost of higher education                                     

 D、a year toward the cost of higher education,instead of the $7 per year required previously                              

E、a year as opposed to the $7 per year required previously for the cost of higher education

此题选D

谢谢各位了~~~

isaxi

第一道题
原文大意：寄生蜂对于合适尺寸的宿主的卵里产正正好的卵。因为多了，寄生蜂的幼虫竞争；少了，宿主的卵会坏。问下面能推出什么结论。
1 适合寄生蜂寄生的最小尺寸的宿主的卵可以从寄生蜂的产卵习惯上推出。
正确。因为寄生蜂产卵数是固定的，宿主的卵比最小尺寸还小，就存在卵多了，幼虫竞争，所以可以推算。
2 宿主昆虫缺少有效抵抗寄生的办法。这件事情和原文的描述无关。
3 寄生蜂从实践中学习对于不同的宿主产多少卵。原文没有说明寄生蜂为什么产一定数量的卵，不一定是学习，可能是本能。
4 产卵少了比多了死的快。原文没有描述。
5 寄生蜂用视觉线索来计算宿主卵的尺寸。原文没有描述。

isaxi

第二道题
原文大意：本地政府禁止工人罢工是高成本错误，因为这样只能走劳资仲裁。那些工作不能被替代的应该禁止。问能推出什么。
C 仲裁对那些只能使用仲裁来解决劳资纠纷的工人最有帮助。一般有两条路，仲裁或者罢工，如果只能仲裁就只有仲裁一条路了，所以仲裁对一条路的肯定比对两条路的更有帮助。因为可以罢工的，不一定需要仲裁的帮助。
其他都推不出来。