单选题 The thrombus forms in a blood vessel or within the heart and obstructs the circulation.
单选题The consumer group complained about ______.
单选题When trapped in drifting sands, do not struggle, or you will be ______ in deeper.
单选题It is ______ of you to turn down the radio while your sister is still
ill in bed.
A. considerable
B. considerate
C. concerned
D. careful
单选题A wholesaler (Paragraph 2, Line 2) is ______.
单选题It is implied in the second paragraph that______.
单选题They ______ for an early end to the fighting which had brought about a great loss to the city.
单选题 Which of the following sentences is NOT correct?
单选题He is sitting ______ of the car with the driver.A. in frontB. in the frontC. on the frontD. front
单选题Jane: Do you think he will come to my birthday party? Tom:______
单选题
单选题The author seems to be especially impressed by the fact that ______. ( )
单选题His favorite ______ is playing drums.
单选题Tom: It took me ten years to build up my business, and it almost killed me.Mike: Well, you know what they say, ________ .
单选题（）
单选题The team played hard because the championship of the state was ______. A. at hand B. at stake C. at large D. at best
单选题So fast ______ that it is difficult to imagine its speed.
单选题The small supplier firm will often be located near to the big firm, and will be expected to provide supplies ______.
单选题The Saturday Evening Post became symbolic of the reading fare of middle-class America. In 1897 Curtis began to revive （重振） the Post on the proposition that a mans chief interest in life is the fi
单选题In spite of all stories of prosperity in the United States, not only does poverty exist there, but crimes of various types have been increasing at alarming rate. Most acts of violence were committed by young people . 57% of the criminals arrested in 1979 were youths below 25 of age. Everyone agrees that crime is party a result of bad material conditions: poverty, lack of education, living without a settled home, being parentless, sufferings from other kings of misfortune, etc. There are also other factors than material conditions which are responsible for the sharp increase of crime rate. In the first place, some state laws provide a death penalty but some protection. It is therefore possible and easy for anyone in the country to get a gun. Finally, there has been too much shown on TV and too much reported in newspaper of all kinds of crimes-the details of which are so accurately described that even children know how to duplicate what they have seen or read. All there have resulted in a high frequency of crimes committed both by professional criminals and by nonprofessional ones in murder, drug smuggling, robbery, etc.