下面共有15个句子，每个句子中均有1个词或短语划有底横线，请从每个句子后面所给的4个选项中选择1个与划线部分意义最相近的词或短语。
1 The Mayan civilizationon the Yucatan peninsula of Mexico.
A profited B gained C benefited D prospered
2 The field of international finance involves policies and procedures that affect the of money and credit among countries.
A appraisal B numeration C availability D circulation
3 When an electric current a wire, a magnetic field appears around the wire.
A travels B vibrates C alternates D fluctuates
4 It was difficult to see ships in the distance because of the .
A sweat B haze C dew D frost
5 Many tourists are attracted to the New England states by the autumn .
A weather B leaves C festivals D harvest
6 Though chess players may now compete against computers, they still rules that were used over 800 years ago.
A come after B abide by C recite D allow
7 The harpsichord, developed during the Middle Ages, was one of the of the piano.
A competitors B imitators C predecessors D offspring
8 Strict sanitary procedures help to out-breaks of disease.
A prevent B control C minimize D preview
9 Even the best-build machine will not runwithout proper maintenance.
A eternally B smoothly C dependably D accurately
10 For financial reasons, scientists are often compelled to their research.
A extend B resume C abandon D redirect
11 Archaeologists have discovered fossils of million-year-old animals in.
A remnants B graves C records D paws
12 The oldest preserved manuscripts are those written on papyrus, which were in Egyptian tombs.
A protected B hidden C sought D discovered
13 Mary the cake.
A served B iced C split D cooled
14 In the first decades of the twentieth century, the individual gene could not be seen, but could be worked with
A blindly B completely C productively D carefully
15 Grounded whales often struggle to reenter deep water.
A violently B desperately C in vain D at length
1. D2. D3. A4. B5. B 6. B7. C8. A9. A10. C 11. A12. D13. B 14. C15. C
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