1、【题目】Despite the proliferation of other faster modes of transportation, the railroads remain the largest carriers of intercity freight in the United States.

选项：

A.schemes

B.means

C.tracks

D.variables

答案：

B

解析：

暂无解析

1、【题目】Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.

选项：

A.bythebook

B.byamap

C.bylogic

D.byhand

答案：

解析：

1、【题目】Cream of tartar 酒石 , a weak acid, can be added to egg whites to help them foam泡沫 when they are beaten

选项：

A.whipped

B.aged

C.boiled

D.cracked

答案：

A

解析：

暂无解析

1、【题目】Ella Grasso, elected governor of Connecticut in 1974, supported the enactment (given, granted) of a freedom-of-information law.

选项：

A.passing

B.advocates

C.drafting

D.circulation

答案：

A

解析：

暂无解析

1、【题目】Blue－greenalgaegrowabundantlyinsaltmarshes.

选项：

A.primarily

B.slowly

C.onplants(cultivate)

D.ingreatnumbers

答案：

解析：

1、【题目】Solidgeometryhasenabledastronomerstocalculatethepositionsoftheheavenlybodiesrelativetooneanother.

选项：

A.ontopof

B.nextto

C.inspiteof

D.withrespectto

答案：

解析：

1、【题目】Eyespots, the most rudimentary eyes, are found in protozoan原生动物 flagellates 鞭毛虫 , flatworms 扁形虫 , and segmented worms片段 蠕虫 .

选项：

A.hostile-looking

B.perceptive

C.primitive

D.strangelyformed

答案：

C

解析：

暂无解析

1、【题目】ThefirstimportantexpositionintheUnitedStateswasheldinPhiladelphiain1876.

选项：

A.exhibition

B.concert

C.excursion

D.contest

答案：

解析：

1、【题目】Peoplewhodonotsleepenoughtendtobecomeirritable.

选项：

A.easilyannoyed

B.ill

C.weary

D.stiffandsore

答案：

解析：

1、【题目】TheNativeAmericaninterpreterSacajaweawasavaluablememberoftheLewisanddarkexpeditionin1805.

选项：

A.veryfriendly

B.veryuseful

C.verythoughtful.

D.verywealthy

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