With what topic is the passage mainly concerned? The hydra is a kind of______.

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问题 With what topic is the passage mainly concerned?
The hydra is a kind of______.

选项 A、flatworm
B、coelenterate
C、sea anemone
D、nerve cell

答案B

解析学生肯定不知道hydra和coelenterate这两个词意思。没关系，看看上下文就知道了：Nerve cells evidently first appeared in coelenterates——“hollow-gutted” organisms like hydra and the sea anemone．这里通过organisms就把这两个词连起来：coelenterates就是“hollow—gutted” organisms，而通过like这个词来举例，hydra是"hollow-gutted organisms”即coelenterates的一种。

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大学英语六级

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With what topic is the passage mainly concerned? The hydra is a kind of______.

大学英语六级

ImportantNotice!Pleasebeadvised:theannualtestingofthebuilding’sfireandlifesafetysystemwillbeconductedonW

Earlytobedandearlytorise______amanhealthyandhappy.

Itispossiblethatyourcompanyisfacingdifficultiesofwhichwearenotaware．

______withthedevelopedcountries,someAfricancountriesareleftfarbehindintermsofpeople’slivingstandard.

It’sestimatedthatone-thirdofthecountriesoftheworldareveryrich,andtwothirdsareverypoor.Peopleinthericherco

A—StockexchangeK—StocktransferB—BuyingandsellingstockL—StockcompanyC—StockmarketM—SharecapitalD—Currentprices

(see)______fromthewindowoftheplane,thecitylookscleanerandmorebeautiful.

Alargenumberofcompanieswentbankruptlastyear，mainlyduetotheterribleeconomicconditionsandtheirpoormarketingstra

A、AvacationtriptoYellowStonePark.B、Alecturebyavisitingprofessor.C、Herbiologythesis.D、Aresearchproject.DWhatd

A、Themancancomeanothertime.B、Therewouldbemorefunwithouttheman’sroommate.C、Itisnoproblemiftheman’sroommate

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FOB、CFR、CIP的主要区别在于()

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1987年，党的十三大系统阐述了邓小平理论的基本轮廓，明确提出我国处于（）。

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