更多"Galena, the chief ore of lead, is a"的相关试题:
[单项选择]Galena, the chief ore of lead, is a brittle, lead—gray mineral with a metallic luster.
A. petrified
B. dense
C. breakable
D. sparkling
[单项选择]The author states that the smelting of iron ore in England _______.
A. developed rapidly after 1710
B. was controlled by owners of forests
C. helped the sale of cloth
D. was threatened by smelting in America
[单项选择]The production of tin ore in the United States is relatively insignificant, _______ less than one hundred tons annually.
A. amounting to
B. in the amount
C. amounts to it
D. to the amount of
[单项选择]By immersing ore particles in water, ______.
A. we can get ore particles of equal size
B. we can purify aluminum particles
C. we can filter out aluminum
D. we can improve the working conditions around
[单项选择]"Lead (metal)" and "lead (dog's head)" are spelt in the same way, but pronounced differently. This kind of sense relation is called ______
A. polysemy
B. antonymy
C. homonymy
D. hyponymy
[单项选择]"Lead(metal)" and "lead(dog's head)" are spelt in the same way, but pronounced differently. This kind of sense relation is called ______.
A. polysemy
B. antonymy
C. homonymy
D. hyponymy
[单项选择]What is the chief purpose of double majors
A. To help graduates of history major become successful businessmen.
B. To provide liberal arts graduates with a method of meeting effectively the challenge in employment.
C. To extend their knowledge learnt in the college.
D. To moderate the tension between liberal arts and vocational faculties.
[单项选择]What is the chief purpose of the passage
A. To propose new fields in brain research.
B. To outline the research findings on the brain structure.
C. To discuss the various causes of structural differences in brain.
D. To explain the relationship between gender and brain structure.
[单项选择]Nowadays, the chief concern of British universities is how to ________ their present finan cial difficulty.
A. undertake
B. tackle
C. engage
D. experience
[单项选择]One of the chief difficulties in accurate earthquake warning is that ______.
A. earthquakes may take place in anywhere possible.
B. earthquakes may happen at any unexpected moment.
C. most earthquakes take place simultaneously and unexpectedly.
D. the occurrence of earthquakes involves too many unforeseen factors.
[单项选择]What is Cindy's chief responsibility now
A. Renewing promising car models.
B. Supervising production.
C. Doing market research.
D. Developing small cars.
[单项选择]The chief functions of direct-mail advertising are to familiarize prospective buyers with a product, its name, its maker, and its merits and with the product's local distributors.
A. potential
B. responsive
C. inquisitive
D. perceptive
[单项选择]The chief foods eaten in any country depend largely on （） best in its climate and soil.
A. it grown
B. does it grown
C. what grows
D. what does it grow
[单项选择]Experts used to believe that the chief reason for global wanning is _________.
A. that most fuel is consumed in the northern hemisphere
B. human activities
C. natural influences and carbon dioxide
D. the solar energy
[单项选择]The chief force that motivated John Bunyan to write The Pilgrim's Progress was his ______.
A. political commitment
B. religious fervency
C. artistic pursuit
D. long suffering in the prison
[单项选择]The chief concern of the American government in the area of agriculture in the 1920s was ______.
A. to increase farm production
B. to establish agricultural laws
C. to prevent farmers from going bankrupt
D. to promote the mechanization of agriculture
