单选题She started to learn English when she was very young, ______ contributes to her success in her eareer.

单选题There are some steps you can take yourself to avoid catching a cold. Contrary to popular belief, colds are not caused by exposure to severe weather. Colds are caused by viruses (病毒) harbored in the body, and you"re better off out on the ski slopes or even waiting for the bus on a snowy day than you are in a warm room, surrounded by friends, co-workers, or fellow students, who just may be passing the viruses around. If you feel a chill when you"re coming down with a cold, you"re already sick. A chill is an early symptom: it"s the cold that caused the chill, not the other way around. While the virus can spread through droplets (飞沫) propelled into the air when a cold-sufferer coughs or sneezes. Surprisingly, this is not the most common route of transmission, Numerous studies have now shown that the overwhelming majority of colds are "caught" by hand contact, A cold sufferer rubs her nose, thereby transferring the virus to her hand. Then a friend comes to visit. "Don"t kiss me," she cautions, so the friend steps back and presses her hand. The friend then wipes her own nose or eye, and several days later is stricken with a cold. Or parents pick up their child"s discarded (丢弃的) tissues and carefully throw them away, but fail to wash their hands afterward. Cold viruses also can be transferred to objects—telephones, towels, plates and remain infectious for up to three hours. Frequent hand-washing—on the part of the cold sufferer as well as other members of the house- hold—will minimize the spread of viruses in this way.

单选题Fox was advised to give the assignment to ______ he believed had a strong sense of responsibility.

单选题People ought to take physical examinations at regular intervals so as to know their own health.

单选题A man can never have too many ties. A.男人没办法买到太多的领带。 B.男人有再多的领带也不为过。 C.男人永远别买太多的领带。 D.人不能有太多的领带。

单选题This is Mr. Zhang, ______ I think has something emergent to tell you. A. who B. whom C. that D. /

单选题This system is one of a number of ways that government officials are getting more control over foreign students.

单选题It was very kind of you to help my brother to clean his room, but youA. mustn't have done B. mightn't have doneC. wouldn't have done D. didn't have to do

单选题Working conditions in this factory are ______ few workers stay longer than three months.A) suchB) so thatC) soD) such that

单选题Only once in his life had Douglas permitted himself ______ control of his emotions.

单选题It is not advisable that Tim______ to the job, because he has no relative experience.A) is assignedB) will be assignedC) be assignedD) has been assigned

单选题[此试题无题干]

单选题After the construction of railroads in the 19th century, larger hotels were built near railroad stations to accommodate railway travelers. A. 经过19世纪的铁路建设之后，更大的旅馆被附近铁道提供住宿。 B. 19世纪铁路经过建设之后，更多的旅馆被建在铁道附近给铁路旅行者提供住宿。 C. 经过19世纪的铁路建设之后，更大的旅馆被建在铁道附近给铁路旅行者提供住宿。 D. 19世纪的铁路建设经过之后，更大的旅馆被附近铁道提供住宿。

单选题Was it is 1969 ______ the American astronaut succeeded ______ landing on the moon? A. when, on B. that, on C. where, in D. that, in

单选题Which of the following gives a best summary of the article?

单选题[此试题无题干]

单选题The work done, they put away their tools and left the workshop.

单选题He makes little of walking fifty kilometers in a day，

单选题The first question we now discuss is ______ we should go there so early tomorrow.

单选题He was so engaged ______ his business that he hadn't been home for a month.