关于大全19-4，16一点疑问，以前没问过

lxw19

大全-19-4.An experimental microwave clothes dryer heats neither air nor cloth. Rather, it heats water on clothes, thereby saving electricity and protecting delicate fibers by operating at a lower temperature. Microwaves are waves that usually heat metal objects, but developers of a microwave dryer are perfecting a process that will prevent thin metal objects such as hairpins from heating up and burning clothes.

Which of the following, if true, most strongly indicates that the process, when perfected, will be insufficient to make the dryer readily marketable?

(A) Metal snap fasteners on clothes that are commonly put into drying machines are about the same thickness as most hairpins.

(B) Many clothes that are currently placed into mechanical dryers are not placed there along with hairpins or other thin metal objects.

(C) The experimental microwave dryer uses more electricity than future, improved models would be expected to use.

(D) Drying clothes with the process would not cause more shrinkage than the currently used mechanical drying process causes.（E）

(E) Many clothes that are frequently machine-dried by prospective customers incorporate thick metal parts such as decorative brass studs or buttons.

明白了为什么选E，可是那位大牛来解释一下C为什么不对呢~~如果有一个更为省电的model的话，那么microwave clothes dryer 还会有市场吗？

lxw19

补充一道题

大全-19-16.    

Many consumers are concerned about the ecological effects of wasteful packaging. This concern probably explains why stores have been quick to stock new cleaning products that have been produced in a concentrated form. The concentrated form is packaged in smaller containers that use less plastic and require less transportation space.

Which of the following, if true, most seriously undermines the explanation offered above?

(A) Few consumers believe that containers of concentrated cleaning products are merely small packages of regular cleaning products.
(B) The containers in which concentrated cleaning products are packaged are no harder to recycle than those in which regular cleaning products are packaged.
(C) Those concentrated cleaning products that are intended to be used diluted have clear instructions for dilution printed on their labels.
(D) The smaller containers of concentrated cleaning products enable supermarkets and drugstores to increase their revenues from a given shelf space.
(E) Consumer pressure has led to the elimination of wasteful cardboard packaging that was used for compact discs.

答案选D，用了concentrated form 的包装的产品使商店每个货架上的收益增加了，这跟原文有关系吗？要有也是加强啊？想不明白~~等待NN

lxw19

Ding ding，nn快来啊

yuzi731

大全-19-4  c 中 讨论的是耗不耗电  这个原文中没有讨论过

ashley0707

microwave clothes dryer 这个题为什么不选B？不含 thin metal objects，说明这个perfect的东西不够有市场啊

200940408054

请问什么是大全？