Which is one of the largest government departments that deal with education?

A . casting interlocking components B . welding plates to form sections for assembly C . forging integral components D . case hardening integral component

A . My vessel was anchored waiting for dry-docking B . Only towards the end did I sound the alarm C . Hearing emergency alarm,everyone got confused D . When everything was almost under control, it is unnecessary to bother other

A . Bedplate B . Block C . Base D . Sum

A .  full mesh B .  peer-to-peer C .  partial mesh D .  hub and spoke

A . humidity B . varying densities of water C . vessel traffic D . the jet stream

A．Big Ben B．National Exhibition Center C．Westminster Abbey D．Buckingham Palace

A.Efforts made by church leaders. B.Rallies held by graduates of Harvard University. C.Demand for a more advanced mode of teaching among the graduates of the old colleges. D.The limitation of the range of studies.

A．A.Itsaves costs and reduces travel tim B．B.Itimproves motivation and productivity. C．C.It better balances work and family lif D．D.How to manage teleworkers and evaluate their performance is still a problem.

Using placebos to test drugs sometimes has a surprising result. Researchers say people taking the placebo often report improvements in their health. This is known as "the placebo effect"--pain that is eased or stopped by an inactive substance. In such testing, the drug must perform. better than the placebo to prove that it is effective. Doctors have reported that the placebo effect can be used in treatment. For example, a doctor tells a patient that a new drug will stop the pain in his leg. The pill is only sugar. But the patient does not know that. He takes the pill and says his pain is gone. Scientists are beginning to discover some physical reasons for this reaction in some people. They are learning that much of what people believe to be true comes from what the brain expects is going to happen. If the brain believes a drug will ease pain, the brain may begin physical changes in the body that can cause the expected effect. A recent examination of studies on drugs for depression found that placebos eased the depression about as well as the active drugs. Other studies have explored the power of placebos. A study in Japan involved thirteen people who reacted to the poison ivy (常青藤)plant. Poison-ivy causes red itchy sores(伤痕)on some people who touch it. Each person was rubbed on one arm with a harmless leaf, but was told it was poison ivy. Each person was then touched on the other arm with poison ivy, but was told it was a harmless leaf. All thirteen people developed a reaction on the arm where the harmless leaf touched their skin. Only two reacted to the poison ivy leaves. Doctors and scientists worry that the use of placebos may not always be harmless. They say people can become victims of false doctors and others who use placebos to claim they can cure disease. What do medical researchers usually use to make placebo pills？ A．Ivy leaves. B．Harmless leaves. C．Medicine being tested. D．sugar.

A．Harvard University B．the State University of New York C．Yale University D．Princeton University

A．Amorphous B．Ceramic C．Polymer D．Crystalline

A．plasma cell B．T cell C．Antigen-presenting cells D．Macrophag E．Memory B cells

A．Pale face B．Dizziness and heaviness of head C．Nausea and vomiting D．Fatigue

A．Three or more than three syllables B．Greek or Latin origin C．Seldom used in daily conversation D．Not borrowed from Greek, Latin, or French