衛(wèi)生類C級：詞匯選項 flourished
1 The Mayan civilization flourished on 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 flow of money and credit among countries.
A appraisal B numeration C availability D circulation
3 When an electric current flows through 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 fog.
A sweat B haze C dew D frost
5 Many tourists are attracted to the New England states by the autumn foliage.
A weather B leaves C festivals D harvest
6 Though chess players may now compete against computers， they still follow rules that were used over 800 years ago.
A come afterB abide by C recite D allow
7 The harpsichord， developed during the Middle Ages， was one of the forerunners of the piano.
A competitors B imitators C predecessors D offspring
8 Strict sanitary procedures help to forestall out-breaks of disease.
A prevent B control C minimize D preview
9 Even the best-build machine will not run forever without proper maintenance.
A eternally B smoothly C dependably D accurately
10 For financial reasons， scientists are often compelled to forsake their research.
A extend B resume C abandon D redirect
11 Archaeologists have discovered fossils of million-year-old animals in excavations.
A remnants B graves C records D paws
12 The oldest preserved manuscripts are those written on papyrus， which were found in Egyptian tombs.
A protected B hidden C sought D discovered
13 Mary frosted 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 fruitfully.
A blindly B completely C productively D carefully
15 Grounded whales often struggle fruitlessly to reenter deep water.
A violently B desperately C in vain D at length