We all ____ your coming to help us.
A.appropriate
B.appreciate
C.admit
D.affect
A.appropriate
B.appreciate
C.admit
D.affect
A.conform
B.compose
C.confirm
D.comply
A. make
B. have
C. avail
D. advantage
A.acceptable
B.reasonable
C.outstanding
D.tolerable
A.on
B.at
C.to
D.for
A.在得到我们的答复之前,你必须向你原来的老板去索要一份证明函。
B.我们给你答复的前提是,你以前的老板愿意向我们提供一份推荐函。
C.我们需要你以前的雇主提供一份推荐函,然后才能给你明确的答复。
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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.
A.正确
B.错误
对于基于组件的复用错误的描述是()
A、组件就是类或方法
B、EJB、COM、.NET和CORBA等是主要的组件模型
C、组件复用不适用于跨平台操作
D、组件复用的部署和升级较麻烦