1、【题目】When carbon is added to iron in the proper proportions , the result is steel.

选项：

A.container

B.sequence

C.laboratories

D.amounts

答案：

D

解析：

暂无解析

1、【题目】How many people are aware that a dancer with the New York City Ballet typically wears out a minimum of two hundred pairs of toe shoes per year?

选项：

A.only

B.exactly

C.atleast

D.fewerthan

答案：

C

解析：

暂无解析

1、【题目】ThecompanyissuesanannualreporteveryMarch.

选项：

A.ayearly

B.acomprehensive

C.afinancial

D.aproduct

答案：

解析：

1、【题目】While Billie Holiday did not invent the music called "the blues", she most assuredly helped popularize it.

选项：

A.finally

B.certainly

C.earnestly

D.enthusiastically

答案：

B

解析：

暂无解析

1、【题目】Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.

选项：

A.insatiable贪的无厌的

B.inherent

C.indiscriminate不加选择的

D.incredible

答案：

解析：

1、【题目】Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.

选项：

A.almost

B.definitely

C.already

D.universally

答案：

解析：

1、【题目】One of the greatest breakthroughs for professional women came in 1973 when the field of banking opened up for them.

选项：

A.mostseriousdisappointments

B.mostsignificantadvances

C.mostabruptdeclines

D.mostcrucialsituations

答案：

B

解析：

暂无解析

1、【题目】Thefirstpaperwasmadefromthebarkofthemulberrytree.

选项：

A.driedwood

B.outercovering

C.syrup(sirup)

D.root

答案：

解析：

1、【题目】The Native American interpreter Sacajawea was a valuable member of the Lewis and dark expedition in 1805.

选项：

A.veryfriendly

B.veryuseful

C.verythoughtful.

D.verywealthy

答案：

B

解析：

暂无解析

1、【题目】Themegaphone(microphone)makesthevoicesoundlouderbecauseitpointssoundwavesinonedirectionandkeepsthemfromspreadingoutinalldirections.

选项：

A.slithering

B.radiating

C.interfering

D.murmuring

答案：

解析：

1、【题目】Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten

选项：

A.whipped

B.aged

C.boiled

D.cracked

答案：

解析：

1、【题目】The company issues an annual report every March.

选项：

A.ayearly

B.acomprehensive

C.afinancial

D.aproduct

答案：

A

解析：

暂无解析

1、【题目】The megaphone(microphone) makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in all directions.

选项：

A.slithering

B.radiating

C.interfering

D.murmuring

答案：

B

解析：

暂无解析

1、【题目】Someseaurchins海胆havevenomous(toxin)spines

选项：

A.sensuous(feeling)

B.crooked(twisted)

C.poisonous

D.sticky

答案：

解析：