Why is the night flight more harmful?

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问题 Why is the night flight more harmful?

选项 A、Because it is not safer than daytime flight.
B、Because it leads to greenhouse effect.
C、Because it reduces temperature.
D、Because it is not good for human health.

答案B

解析细节判断题。新闻使用了对比的方式说明为什么飞机的水汽尾迹在白天是有利的，但在夜晚会对环境造成影响，导致温室效应。结尾的举例中出现了greenhouse effect一词，由此可以判断B项是正确答案。

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专业英语四级

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Why is the night flight more harmful?

专业英语四级

Americancitiesare【C1】othercitiesaroundtheworld.Ineverycountry,citiesreflectthe【C2】oftheculture.

Whenwilltherescueresume?

Peopledonotanalyzeeveryproblemtheymeet.Sometimestheytrytorememberasolutionfromthelasttimetheyhadasimilarp

Itisbadmannersto______otherpeoplebehindtheirbacks.

Whetherwewantitornotweareallgreedy(1)___nature.Fromthemomentwearebornandtothelastdayofourlifewe(2)

Evidenceofthebenefitsthatvolunteeringcanbringolderpeoplecontinuestorollin."Volunteershaveimprovedphysicalands

Evidenceofthebenefitsthatvolunteeringcanbringolderpeoplecontinuestorollin."Volunteershaveimprovedphysicalands

Itwasrecommendedthatpassengers______smokeduringtheflight.

WindbreaksFarmersusedifferentkindsofsoilconservationmethodstoprotecttheirlandagainstdamagefromfarmingandth

Itiscommonknowledgethatdrugabuseleadstoharmfulconsequences.Whythendopeople—particularlyyoungsterscontinuetouse

圆柱端面凸轮一般用__________。

设正点电荷的电量为0．002C，把它从电场中的A点移到B点，电场力所做的功为0．05J，试求A、B两点间的电压?如果点电荷的电量为0．08C，电场力把它由A点移到B点所做的功是多少?

对群体作出明确的定义是在【】

某企业每年需要A零件450000件，该零件每次订货成本为400元，每件年储存成本为10元。要求：(1)计算A零件的最佳采购批量；(2)计算A零件年采购次数；(3)计算A零件最佳采购批量的相关总成本。

(2013．1．6)企业为了评估目标市场的未来变化而进行的调查研究属于()

《始得西山宴游记》中总写西山高大特立的侧写语句是()

患者，女性，37岁，因左上面颊部肿胀1日就诊。检查：左上面颊肿胀，口内检查发现左上颊黏膜转折处红肿，压痛，无波动感。近中邻面龋,探痛(－)。叩痛(+++)，温度诊(－)。应采取的应急处理为

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Manyconsumersareconcernedabouttheecologicaleffectsofwastefulpackaging.Thisconcentprobablyexplainswhystoreshave

A、It’smadeupofprofessionalathletes.B、It’smadeupofcollegeplayers.C、It’smadeupofbothprofessionalandcollegeplay

Why is the night flight more harmful?

专业英语四级

Americancitiesare【C1】______othercitiesaroundtheworld.Ineverycountry,citiesreflectthe【C2】______oftheculture.

Whenwilltherescueresume?

Peopledonotanalyzeeveryproblemtheymeet.Sometimestheytrytorememberasolutionfromthelasttimetheyhadasimilarp

Itisbadmannersto______otherpeoplebehindtheirbacks.

Whetherwewantitornotweareallgreedy(1)_____nature.Fromthemomentwearebornandtothelastdayofourlifewe(2)__

Evidenceofthebenefitsthatvolunteeringcanbringolderpeoplecontinuestorollin."Volunteershaveimprovedphysicalands

Evidenceofthebenefitsthatvolunteeringcanbringolderpeoplecontinuestorollin."Volunteershaveimprovedphysicalands

Itwasrecommendedthatpassengers______smokeduringtheflight.

WindbreaksFarmersusedifferentkindsofsoilconservationmethodstoprotecttheirlandagainstdamagefromfarmingandth

Itiscommonknowledgethatdrugabuseleadstoharmfulconsequences.Whythendopeople—particularlyyoungsterscontinuetouse

圆柱端面凸轮一般用__________。

设正点电荷的电量为0．002C，把它从电场中的A点移到B点，电场力所做的功为0．05J，试求A、B两点间的电压?如果点电荷的电量为0．08C，电场力把它由A点移到B点所做的功是多少?

对群体作出明确的定义是在【】

某企业每年需要A零件450000件，该零件每次订货成本为400元，每件年储存成本为10元。要求：(1)计算A零件的最佳采购批量；(2)计算A零件年采购次数；(3)计算A零件最佳采购批量的相关总成本。

(2013．1．6)企业为了评估目标市场的未来变化而进行的调查研究属于()

《始得西山宴游记》中总写西山高大特立的侧写语句是()

患者，女性，37岁，因左上面颊部肿胀1日就诊。检查：左上面颊肿胀，口内检查发现左上颊黏膜转折处红肿，压痛，无波动感。近中邻面龋,探痛(－)。叩痛(+++)，温度诊(－)。应采取的应急处理为

《会计档案管理办法》规定的会计档案保管期限为最高保管期限。()

Manyconsumersareconcernedabouttheecologicaleffectsofwastefulpackaging.Thisconcentprobablyexplainswhystoreshave

A、It’smadeupofprofessionalathletes.B、It’smadeupofcollegeplayers.C、It’smadeupofbothprofessionalandcollegeplay

Americancitiesare【C1】othercitiesaroundtheworld.Ineverycountry,citiesreflectthe【C2】oftheculture.

Whetherwewantitornotweareallgreedy(1)___nature.Fromthemomentwearebornandtothelastdayofourlifewe(2)