1、【题目】WhileBillieHolidaydidnotinventthemusiccalled"theblues",shemostassuredlyhelpedpopularizeit.

选项：

A.finally

B.certainly

C.earnestly

D.enthusiastically

答案：

解析：

1、【题目】Whencarbonisaddedtoironintheproperproportions,theresultissteel.

选项：

A.container

B.sequence

C.laboratories

D.amounts

答案：

解析：

1、【题目】Thefirstpaperwasmadefromthebarkofthemulberrytree.

选项：

A.driedwood

B.outercovering

C.syrup(sirup)

D.root

答案：

解析：

1、【题目】TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.

选项：

A.completelydestroy

B.carefullydisguise

C.sustain

D.contain

答案：

解析：

1、【题目】The Salk vaccine is a major factor in the fight to eradicate polio.

选项：

A.completelydestroy

B.carefullydisguise

C.sustain

D.contain

答案：

A

解析：

暂无解析

1、【题目】Inliterature,caricatures讽刺画usuallycontainverbalexaggerationthroughwhichthewriterachievescomicandoftensatiric讽刺effects.

选项：

A.banter取笑(tease)

B.humor

C.interaction

D.overstatement

答案：

解析：

1、【题目】The flower bud of a water lily 百合 opens at sunset since .its opening is triggered(commence) .by the decreased light.

选项：

A.alleviated减轻

B.endured

C.setoff

D.coveredup

答案：

C

解析：

暂无解析

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