单选题The word "antecedent" in line 19 is closest in meaning to

单选题The word "it" in line 6 refers to

单选题(Although) the term "corrosion" applies mostly to metals and particularly to (their reaction)to oxygen, all (material) are subject to (surface deterioration)

单选题Narrator Listen to part of a lecture in a history class. Now get ready to answer the questions. You may use your notes to help you answer.

单选题According to the passage, which of the following is the LEAST amount of time necessary for glacial ice to form?

单选题According to the passage, the drilling of the glacier in eastern Antarctica was important because it

单选题The chief justice of the United States presides over the Supreme Court during oral arguments and in conferences ______.

单选题What does the author mean by stating in line 17 that "economic development was on themerchants' side "?

单选题Colonial efforts to manufacture glass at Jamestown---- and later attempts A B near Philadelphia and Boston---failed despite the abundant of fuel and good raw C materials. D

单选题According to the passage, early violins were different from modern violins in that early violins

单选题Which of the following occurred as the ices from Halley's Comet evaporated?

单选题The ice of a glacier that reaches the sea breaks off—.

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单选题Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points. Experimenting with objects can pave the path to success for the intelligent, inquisitive boy. ● ● ● Answer ChoicesA. In Henry Ford's childhood, he did a lot of experiments with many objects. The experience of firing the engine and running it stimulated Henry Ford's dream of creating a self-propelled vehicle.B. Henry Ford's family were farmers and he began to develop mechanical skills on the family farm.C. Ford moved to Detroit to work in the machine shops when he was seventeen. He began working at the Michigan Car Company for $1. 10 a day, but he was fired.D. When Henry Ford grew up, he moved to Detroit to work in the machine shops. Ford's efforts began to pay off when he was working at the Detroit Edison Illuminating Company where Edison encouraged him to continue developing his inventions.E. Henry Ford met Thomas Edison at the Detroit Edison Illuminating Company and was encouraged to invent an operable car that was later written up in the Detroit Journal where he was described as a "mechanical engineer".F. Ford fulfilled his dream with the invention of his ninth car. Today we respect him for his great invention the "horseless carriage" and his success tells us that children should be encouraged creatively.

单选题Fainting (is caused) by stoppage of the blood supply to brain, due to (temporary) heart (fail) from shock, (weakness), or exhaustion.

单选题One of the most significant elements of age stratification in all cultures is the pattern of experiences connected to marriage and parenting--a pattern that sociologists call the family life cycle. In North America, about 90 percent of adults marry, and the great majority of them have children and thus a family life cycle related to family experiences. When the family's first child is born, the parents embark on a sequence of experiences linked to the child's development--from infancy and toddlerhood, through school age and adolescence, and eventually, to departure from the nest. Each of these periods in the child's life makes a different set of demands on the parents.

单选题An image on a national flag can symbolize political ideals that ______express. A. take many words to otherwise would. B. would take to many otherwise words C. many words to take would otherwise D. would otherwise take many words to

单选题The word "identical" in line I is closest in meaning to

单选题The word "strain" in line 23 is closest in meaning to