In its pure State, aluminum is a weak metal, but when combined with elements such as copr or magnesium, it is formed alloy of great strength

Câu hỏi liên quan

•  If it  .............. for the heavy storm, the accident would not have happened.

• Last night, when I was reading, I heard the door to open and saw shadow move across the floor.

• Although almost all  insects have six legs, a mature insect may not have any.

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• The nitrogen makes up over 78 percent of the Earth’s atmosphere, the gaseous mass surrounding planet.

• Most of the magnesium used in the United S comes from the sea water.

• Tea did not become popular in Europe the mid 17th century when it has been first imported to England and Holland

• While searching for the wreckage of a identified aircraft, the Coast Guard encountered severe at sea 

• The vase has the same design, but it different shaped from that one

• A coral reef, a  intricate aquatic community of plants d animals, is found only in warm, shallow, sunlight seas

• That isn't Bill driving, .......................? 

• On February 20th, 1962, “Friendship 7” orbiting Earth in a manned flight that lasted just under five hours.

• Mark the letter A, B, C, or D to indicate the word(s) closest in meaning to the underlined word(s)in each of the following questions. In addition to exploring the caves and grottos, and seeing its flora and fauna, visitors can also enjoy mountain climbing.

• The graphics abilities of a computer depend on the speed of its processor and the size of its RAM.

• Not one in one hundred children exposed to the disease are like to develop symptoms of it.

• Mosquitoes will accepts the malria parasite only one stage of the parasite’s complex life cycle.

• The student realized disappointment that he had learned new nothing in the lecture.

• The amount of books in Library of Congress is more than 58 million volumes.

• The faster we finish,      ........

• Some psychologist believe that those who encouraged to be independent, responsible, and competent in childhood are likely more others to become motivated to achieve.

• The government have tried to .................  the price of food, and they finally succeeded.