问题 单项选择题

临界喷嘴的作用是()。

A.保证再生器一级旋分器的效果

B.保证再生器二级旋分器的效果

C.保证再生器三级旋分器的效果

D.降量

答案

参考答案:C

完形填空
The Canadian people are made up of different national races.The first ____ settlers of the country were the Indians.
It was said that the Indians entered this continent ___ the Bering Strait(白令海峡) and Sea from eastern Asia at most 10,000 years ____.When Europeans first  ____ the country,Indians were living in most of areas ___ forests.There were only ____ Indians in the provinces near the Atlantic Ocean.
The second group of people to enter Canada ____ the Eskimos.They ____ the Bering Strait from Asia less than 3,000 years ago.There are few __ of their early movements.The first white settlers in Canada were the ____.They came in greatest ____ to Quebec,but also to Nova Scotia,____ they cleared farms on the southern side of the Bay of Fundy.The French built their castles at Quebec City,and cleared farms out of the forests in the area.____ the time of the British conquest(征服) in 1763,there had been about 60,000 Frenchmen in Canada,____ chiefly between Quebec and Montreal.There were not many British in Canada ____ American Revolution drove large numbers northward.
Throughout the 19th century,____ British people came to Canada.The descendants(后代) of these people ____ England,Scotland and Ireland now make ____ about half of the population.Around the ____ of the century people came in increasing numbers from Europe and the largest numbers came ____ Central and Eastern­Germans,Czechs,Poles,Rumanians and Ukrainians.
小题1:
A.famousB.well­known
C.knownD.news
小题2:
A.throughB.into
C.onD.across
小题3:
A.earlyB.more
C.agoD.long
小题4:
A.reachedB.left
C.flew toD.shipped
小题5:
A.protectedB.covered by
C.likeD.covering
小题6:
A.fewB.packs of
C.a number ofD.a few
小题7:
A.areB.is
C.wereD.was
小题8:
A.crossedB.walked
C.passedD.swam
小题9:
A.notesB.records
C.signsD.speeches
小题10:
A.BritishB.Indians
C.FrenchD.American
小题11:
A.dealB.members
C.areasD.numbers
小题12:
A.whoB.which
C.whomD.where
小题13:
A.ByB.In
C.AtD.On
小题14:
A.to liveB.living
C.livedD.live
小题15:
A.whenB.after
C.untilD.since
小题16:
A.thousand ofB.thousands of
C.thousandsD.thousand
小题17:
A.inB.to
C.nearD.from
小题18:
A.upB.of
C.fromD.by
小题19:
A.yearB.change
C.turnD.day
小题20:
A.fromB.in
C.overD.up
填空题