下列合法的表达式是( )。A．教师编号BETWEEN 100000 AND 200

"Efficiency is the by-product of comfort," says Dr. Erwin Tichauer of New York University. To prove this____, Dr. Tichauer uses his capability to find_____ways to do things. _____, he felt that the traditional kind of pliers(钳子）______a better design. The usual____limited hand movement and used unnecessary force because it bent the_____. So he designed a pair of pliers to allow the wrist to remain in a comfortable position.
To improve the design of______and then make work easier, Dr. Tichauer____the old tools. He asks such questions as: why ____a stepladder have four legs____three are more stable? Why dose a screwdriver (螺丝刀) have to be made with straight handles? After testing his____, he has invented a new tool that causes less muscle injury and is more efficient. 
Tichauer is not interested in getting ____ from his inventions. In fact, he says, "We _____ people to steal from us. At New York University, we do not patent(注册专利）knowledge or invention."__ __companies have adopted some of his inventions.
As a biochemist, as well as inventor, Dr Techauer____the effect of stress on areas of the body. Even easy______work may put heavy stress on small areas of body and____causes a serious disease. Thus his studies of workers in factories who use the____tool all day long are extremely____in learning about the damage on human body? Dr. Techauer knows that he can not redesign the ____ so he redesigns the tool!

小题1:	A．argument B．impression C．statement D．expectation

小题2:	A．unusual B．easier C．new D．correct

小题3:	A．Especially B．What's more C．Meanwhile D．For example

小题4:	A．followed B．showed C．needed D．proved

小题5:	A．design B．habits C．materials D．work

小题6:	A．body B．finger C．hand D．wrist

小题7:	A．pliers B．a tool C．a stepladder D．screwdrivers

小题8:	A．tests B．uses C．fixes D．destroys

小题9:	A．could B．will C．would D．must

小题10:

A．if B．because C．when D．once

小题11:

A．inventions B．theories C．tools D．questions

小题12:

A．recognized B．famous C．excited D．rich

小题13:

A．encourage B．prevent C．warn D．forgive

小题14:

A．Modern B．Research C．Commercial D．Industrial

小题15:

A．teaches B．studies C．produces D．discovers

小题16:

A．physical B．daily C．office D．research

小题17:

A．in time B．in addition C．immediately D．commonly

小题18:

A．wrong B．old C．same D．heavy

小题19:

A．suitable B．valuable C．logical D．practical

小题20:

A．work B．study C．labor D．body