用冷冻鱼糜为原料制造鱼丸，如何提高鱼丸弹性？

与其他抗结核病药联合使用的药物是（）

A．庆大霉素

B．链霉素

C．奈替米星

D．妥布霉素

E．小诺米星

She is ________ the newspapers to be thrown away and putting away the rest.[ ]

A．sorting out  

B．figuring out

C．making out  

D．turning out

设计的艺术手法主要有：借用、（）、装饰、参照和创造

A.解构

B.构成

C.象形

D.借喻

The fridge is considered a necessity. It has been so since the 1960s when packaged food first appeared with the label: "store in the refrigerator. "

In my fridgeless fifties childhood, I was fed well and healthy. The milkman came daily, the grocer, the butcher, the baker, and the ice cream man delivered two or three times a week. The Sunday meat would last until Wednesday and surplus bread and milk became all kinds of cakes. Nothing was wasted, and we were never troubled by rotten food. Thirty years on, food deliveries have ceased, fresh vegetables are almost unobtainable in the country.

The invention of the fridge contributed comparatively little to the art of food preservation. A vast way of well tried techniques already existed—natural cooling, drying, smoking, salting, sugaring, bottling…

What refrigeration did promote was marketing—marketing hardware and electricity, marketing soft drinks, marketing dead bodies of animals around the globe in search of a good price.

Consequently, most of the world’s fridges are to be found, not in the tropics where they might prove useful, but in the wealthy countries with mild temperatures where they are climatically almost unnecessary. Every winter, millions of fridges hum away continuously, and at vast expense, busily maintaining an artificially cooled space inside an artificially heated house—while outside, nature provides the desired temperature free of charge.

The fridge’s effect upon the environment has been evident, while its contribution to human happiness has been insignificant. If you don’t believe me, try it yourself, invest in a food cabinet and turn off your fridge next winter. You may miss the hamburgers, but at least you’ll get rid of that terrible hum.

Who benefited the least from fridges according to the author().

A．Inventors

B．Consumers

C．Manufacturers

D．Traveling salesmen

癌症是目前基因疗法的重点攻克对象之一。P₅₃基因是一种遏制细胞癌变的基因。科学家发现几乎所有的癌细胞中都有P₅₃基因异常的现象。现在通过动物病毒转导的方法将正常P₅₃基因转入到癌细胞中，发现能引发癌细胞产生“自杀现象”，从而为癌症的治疗又提供了一个解决的方向。对于该基因疗法，从变异的角度分析属于（）

A.基因突变

B.基因重组

C.染色体结构变异

D.染色体数目变异