2013年DYK在IQS需要重点改善的工作内容是（）A、手动变速箱换挡困难 B、过大

小红在研究“物体所受的重力跟物体质量的关系”的实验中，需要用弹簧测力计依次测量不同物体受到的重力．

（1）往测量物体所受重力时，将弹簧测力计竖直放置，当物体处于______状态时，此时弹簧测力计的示数就等于物体受到重力的大小． （选填“静止”或“运动”）

（2）在解释“弹簧测力计的示数为什么等于物体受到重力的大小”时，要根据______和“作用力与反作用力”的知识来进行说明．

园艺工人培育出许多种类繁多的花卉，是利用了（　　）

A．生态系统的多样性

B．生物种类的多样性

C．基因的多样性

D．以上都不是

公平与否的判断，完全是个人的价值观念、思维方式的问题。[ ]

腹外疝术后护理中不正确的是（）。

A.平卧3天，膝下垫一软枕

B.术后当日可进流食

C.预防感染

D.预防术后出血

E.早期下床活动

Visitors to this country are normally admitted for six months, but foreign students can usually stay for one year. They must (51) an educational institution, and they are required to study for a minimum of fifteen hours a week on a (52) course. Prospective students have to show that they can afford their studies, and that they have sufficient (53) resources to support themselves (54) in this country.

In order to work here the foreigner needs a work permit, (55) must be applied for by his prospective employer. The problem here is that the Department of Employment has the right to grant or (56) these permits, and there is little that can be done (57) it; it would be extremely unwise for a foreign visitor to work (58) a permit, since anyone doing so is liable to immediate deportation (驱逐出境). There are some people from the Common Market countries, who are often given (59) residence permits of up to five years. Some other people, such as doctors, foreign journalists, authors and others can work without permits, and foreign students are normally allowed to (60) part-time jobs while they are studying here.

53().

A.natural 

B.financial 

C.moral 

D.occasional