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41.His proposal is very _______. We do not need any explanation.

A. concrete

B.loyal

C.grey

D.draft

42.This is a _______ computer, which we just bought for our research.

A. detective

B.luggage

C.digital

D.grave

43.The two pictures are _______. We don’t know which is the copy.

A. identical

B.likely

C.limited

D.resemble

44.If you don’t want to wash your jacket, you may send it to a _______.

A. participant

B.planet

C.laundry

D.ribbon

45.If the _______ in the test is too small, we can not get a good result.

A. sample

B.percent

C.leisure

D.flight

46.I am very _______. You may tell me your suggestion.

A. fog

B.debate

C.culture

D.flexible

47.This is a very big hotel and it can _______ more than 1,000 people.

A. accommodate

B.display

C.faint

D.loaf

48.Professor Li _______ in doing his experiment for nearly ten years.

A. insisted

B.piled

C.persisted

D.split

49.The new plan is _______ and everybody present agrees with it.

A. feasible

B.adventure

C.appendix

D.camel

50.Please be _______. Your question is too general.

A. limited

B.narrow

C.specific

D.thorough

答案:

41.A 42.C 43.A 44.C 45.A

46.D 47.A 48.C 49.A 50.C