But water, nature’s most essential element, is becoming increasingly______.

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问题 But water, nature’s most essential element, is becoming increasingly______.

选项 A、barren
B、absent
C、critical
D、scarce

答案D

解析形容词辨析题。scarce意为“缺乏的，罕见的”，符合句意，故为答案。barren意为“贫瘠的；不生育的；无益的；空洞的”；absent意为“缺席的；缺少的；心不在焉的”；critical意为“批评的，爱挑剔的；危险的；决定性的”。

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专业英语四级

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But water, nature’s most essential element, is becoming increasingly______.

专业英语四级

Therecanbenodoubtthatthecomputerrevolutionhastouched【C1】everypersoninthecountry【C2】somewayorother

Hearrivedtocarryoutahealthandsafety______ofthebuilding.

Thefinancialanalysisprojecthastobefinishedby

Becausethereisevidenceofseverelyharmfuleffectsfromchemicaldumps,thegovernmenthas_____toughercleanupmeasures.

Whatarethetwospeakersmainlytalkingabout?

Whatisthefirstthingthatpeopleoughttodoinfaceofpollution,accordingtotheauthor?

Itwasessentialthatalltheequipment______backbeforethefactorywentintooperation.

______inthedark,hisheadbumpedagainstthewall.

Hedidn’tattendthenegotiation______hewasill.

[A]local[I]recalling[B]responsible[J]function[C]originally[K]exchange[D]finance[L]overseas[E]issuing[M]preca

设A为3阶实对称矩阵，B为3阶不可逆矩阵，且B≠O，AB-2B=O，已知tr(A)=3，则|A+3E|=()．

寒热并用的方剂是

患者颈前正中肿大，发胀，质软不硬，常叹息，胸闷，两胁窜痛，苔薄白，脉弦，宜选何方

下列设备中，既可作输入设备又可作输出设备的是

下列选项中，口腔单纯性疱疹的致病病原微生物是

我国的土地增值税目前采用()。

ABC公司对某投资项目的分析与评价资料如下：该投资项目适用的所得税率为30％，年税后营业收入为700万元，税后付现成本为350万元，税后净利润210万元。那么，该项目年营业现金流量为()

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Whatisthefirstthingthatpeopleoughttodoinfaceofpollution,accordingtotheauthor?

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A、 B、 C、 C

"WhydidJanetwanttobeanurse?

Therecanbenodoubtthatthecomputerrevolutionhastouched【C1】everypersoninthecountry【C2】somewayorother

设A为3阶实对称矩阵，B为3阶不可逆矩阵，且B≠O，AB-2B=O，已知tr(A)=3，则|A+3E|=()．