单选题If a car or a train traveling at 60 miles an hour ______ from thc earth to the sun, it would take over 179 years to reach it.

单选题Some fat people have a large stomach and no waistline, ______ make them look round.

单选题Though Mary continued working, she kept looking at the clock ______, thinking of her sick baby in hospital.

单选题What should the student do to get along with the family?

单选题"Do you hear someone knocking at the door?" "Yes, I did. I heard him ______ three times."

单选题When do the best play again?

单选题[此试题无题干]

单选题Whichever way you look at__________，joining the Olympic Games can be an outstanding achievement for anyone.

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单选题How are the eyes of a stonefish?

单选题Whatisthewoman'sproblem?

单选题What's the relationship between the man and the woman?

单选题Do you know that the Chinese athlete Zhang Jian has just swum across ______ Channel?

单选题—I didn't ask the leader.—_______．Let's try together.

单选题Whattimewasit?A.10:00.B.11:00.C.9:00.

单选题For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines: a never-ending flood of words. In (36) a job or advancing in one, the ability to read and comprehend (37) can mean the difference between success and failure. Yet the unfortunate fact is that most of us are (38) readers. Most of us develop poor reading (39) at an early age, and never get over them. The main deficiency (40) in the actual stuff of language itself—words. Taken individually, words have (41) meaning until they are strung together into phrases, sentences and para-graphs. (42) , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing to (43) words or passages. Regression, the tendency to look back over (44) you have just read, is a common bad habit in reading. Another habit which (45) down the speed of reading is vocalization—sounding each word either orally or mentally as (46) reads. To overcome these bad habits, some reading clinics use a device called an (47) , which moves a bar (or curtain) down the page at a predetermined speed. The bar is set at a slightly faster rate (48) the reader finds comfortable, in order to "stretch" him. The accelerator forces the reader to read fast, (49) word-by-word reading, regression and sub vocalization, practically impossible. At first (50) is sacrificed for speed. But when you learn to read ideas and concepts, you will not only read faster, (51) your comprehension will improve. Many people have found (52) reading skill drastically improved after some training. (53) Charlce Au, a business manager, for instance, his reading rate was a reasonably good 172 words a minute (54) the training, now it is an excellent 1,378 words a minute. He is delighted that how he can (55) a lot more reading material in a short period of time.

单选题The scientists are not sure______.