For many years, scientists studying the effects that the sun has on human skin.

Câu hỏi liên quan

• Although he was ............... , he agreed to play tennis with me.

• If I were like you, I’d spend a bit more and buy the hardback version of the book.

• Identify the error in each sentence: Rubella, also called German measles, is an epidemic virus disease of mild course

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• Life expectancy has increased a great deal in spite of modern science and technology.

• A computer networks usually includes either selected employees of a particular business or or people who do not work together but have similar interests.

• It is estimated that at least a million meteors have hit the Earth’s land surface, that is only 87 percentage of the planet.

• Betty knows she needs exercise, but finds going to the gym a ..............

• Allen’s not having finished his thesis did not discourage him from applying for other degree program.

• After searching for evidence in the house, the police concluded that the thief must have come in through the window and stole the property while the family was asleep.

• Deep cratered, the moon is over 2100 miles in diameter with negligible gravity and atmosphere.

• Do you have any objections..........this new road scheme?

• Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.

  A. determine B. argument C. counterpart D. marvelous

• The coal is the world’s most abundant fossil fuel.

• Abigail Adam’s letters to her husband present a graphic picture of the age which she lived.

•  I would love to be able to _____ my children in the country. 

• The vast majority of the world’s manganese is found in either South Africa but also the countries of the former Canada.

• Two decibel, which is a unit of relative loud, is the smallest amount of change detected by the human ear.

• From archeological evidences, it knowned that we know that Egyptians were highly organized and civilized. Moreover, they were skillful in using crafts.

• Identify the one underlined word or phrase — A, B, C of D - that must I changed for the sentence to be correct: Raymond Chandler's detectives stories are admired both by critics and general readers

• Pictures of the surface of the planet Venus was received yesterday from the space probe “Explorer”, which was launched last year.