We can learn from Paragraph 3 that deep venous thrombosis usually happens because _____.

A . two-step controller action B . proportional, controller action C . integral controller action D . derivative controller actio

A . The man spends more than he makes． B . The man is not keen on arts． C . The woman is an artist． D . The woman looks down upon the man．

A . A. suggests different peoples use the same, facial expressions to show their emotions B . B. shows that human being have more than seven basic emotions C . C. there are seven basic human emotions D . D. finds that different facial expressions can be easily understood across cultures

A．Edward has nothing in the house to eat. B．Edward agrees to go on a picnic tomorrow. C．Edward thinks the weather won't be good for picnic.

A．the cows often ran out to look for food B．the cows often had fights with their masters C．Mr. Jones and his men often beat the cows D．Mr. Jones and his men often forgot to feed the cows

A．Most Londoners were frightened. B．Most Londoners became rather confused. C．Most Londoners took Exercise Flood Call calmly. D．Most Londoners complained about the trouble caused by the Call.

A．Opportunities for promotion depend mainly on age or seniority. B．The salary is average and modest. C．Loyalty and hard work are required by the agency. D．Overtime working is highly needed.

A．very few people have the sensitivity of the blind' B．blind people can manage to see things, but not clearly C．not everybody sees with his eyes D．it is possible to narrow the photosensitive areas of the body

A．It was difficult to find fuel near them. B．They were not deep enough. C．They were rarely used for transportation. D．They flooded frequently. 此题为多项选择题。

A．people develop fears for dangerous animals by learning B．people are born with fears for dangerous animals C．boys do not feel frightened by the pictures of spiders D．girls are more attracted by beautiful flowers than boys do

A．returned the ticket the next day. B．got a voucher for a free flight. C．took the flight without delay. D．made an official complaint about poor service.

A．Subjects are supposed to modify the perception of stress and their reaction to it. B．Subjects are supposed to relax themselves in stressful conditions. C．Subjects are supposed to learn to slow down physical activity. D．Subjects are supposed to adopt new hobbies that are separate from their careers.

A．Kennedy was a good president. B．If you experience victories, tragedy will surely fall on you. C．The Kennedy family was rich because John Kennedy was the president. D．Family fame, wealth and social position may not necessarily be beneficial.

A．increases in asset prices are interfered by the Federal Reserves B．more emphasis should be placed on consumer-price indices C．changes have taken place in the pattern of inflation D．inflation have been brought under federal control

A．women were not willing to go out for work in the past. B．families ate lunch at a fixed time at home. C．most of the vegetables people ate were produced by themselves. D．foods sold in the grocer's shop were rare and fresh.

A．We shouldn't travel long distance. B．We should save water C．We should often repair our cars.

A．are difficult to detect. B．appear shortly before an earthquake. C．are very destructive. D．appear during an earthquake.

A．Italians cannot talk with others if they don"t move their hands in meaningful ways. B．gesturing going with speech is rarely chosen as the subject of the scientific investigation. C．human language is much more important than meaningful gestures. D．meaningful gestures are considered to be of help to children"s learning.

A．It is impossible to prevent children from being injured. B．A number of methods need to be proved to protect children. C．More children died from injuries in developing countries. D．Nobody knows that accidents don"t have to happen.

A．used to give away their assets at death. B．no longer pass on their wealth to their offspring. C．don"t care how their money is spent at all. D．would not give their offspring financial help.

A．children learn about the meaning of life from their grandparents B．grandparents are usually unwilling to teach their grandchildren C．schools are not very popular with the Navajo youth D．parents hate to take the trouble to raise children