题目内容
（请给出正确答案）
B.for writing on
C.to write with
D.writing
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A.off
B.back to
C.at
D.out of
A、set up
B、set out
C、set down
D、set aside
A.The Chinese government has decided to take about three years to extricate most state-owned enterprises from their difficulties.
B.Chinese government decides to help most national enterprises going out obstacle with about 3 years.
将英语短文译为中文
3 Self-Powered Nanotech (10分)
Nanosize machines need still tinier power plants
By Zhong Lin Wang
The watchmaker in the 1920s who devised the self-winding wristwatch was on to a great idea: mechanically harvesting energy from the wearer’s moving arm and putting it to work rewinding the watch spring.
Today we are beginning to create extremely small energy harvesters that can supply electrical power to the tiny world of nanoscale devices, where things are measured in billionths of a meter. We call these power plants nanogenerators. The ability to make power on a minuscule scale allows us to think of implantable biosensors that can continuously monitor a patient’s blood glucose level, or autonomous strain sensors for structures such as bridges, or environmental sensors for detecting toxins — all running without the need for replacement batteries. Energy sources are desperately needed for nanorobotics, microelectromechanical systems (MEMS), homeland security and even portable personal electronics. It is hard to imagine all the uses such infinitesimal generators may eventually find.
In Brief
★Nanotechnology has huge potential — but those minuscule devices will need a power source that is better than a battery.
★ Waste energy, in the form. of vibrations or even the human pulse, could provide sufficient power to run such tiny gadgets.
★ Arrays of piezoelectric nanowires could capture and transmit that waste energy to nanodevices.
★ Medical devices will likely be a major application. A pacemaker’s battery could be charged so it would not need replacing, or implanted wireless nanosensors could monitor blood glucose for diabetics.
B.had the thieves run
C.ran the thieves
D.did the thieves run
A.实现java.lang.Runnable接口并重写start()方法
B.实现java.lang.Runable接口并重写run()方法
C.继承java.lang.Thread类并重写run()方法
D.实现java.lang.Thread类并实现start()方法
A、continuously
B、incisively
C、ignorantly
D、continually
A.正确
B.错误
