According to the periodic table, ______ still some elements undiscovered.

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问题 According to the periodic table, ______ still some elements undiscovered.

选项 A、there seem to be
B、it seems to be
C、it seems that
D、here seem

答案A

解析本题为存在句辨析题。存在句和if作形式主语的句子有很大的区别。存在句主要表示某处存在某物，其基本句型为there be结构，这种结构可以变化为：there is going to be，there seems to be等。it作形式主语，句子的真正主语是由that引导的从句。本句大意：根据元素周期表，似乎还存在一些没有发现的元素。

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英语

成考专升本

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According to the periodic table, ______ still some elements undiscovered.

英语

成考专升本

Thechiefengineerinchargeoftheresearchprojectsaiditwastooearlyasyetto______(summary)anyresults.

Studentsshouldbeallowedtostudywithoutworryingaboutgrades.Fortunately,mosteducatorsarebecomingawareofthefactth

IturnedontheTVjusttorelaxalittleafteraheavydinner,(butsoonIfoundmyselfsoattractedastobeunabletogetawa

(Ifthesituationgoesworse),aseriousproblemmaycomeup.

Thesituationtodayisobviouslyquitedifferentfrom______itwasonly50yearsago.

Don’tletyourmothertongue______withtheforeignlanguageyouarelearning.

Whenafire______attheNationalExhibitioninLondon,atleasttenpricelesspaintingswerecompletelydestroyed.

Memoryistheabilitytokeeptrackofthingsthathavehappenedinthepast.Memoryreallyislearning.Oneneedsmemorytorid

AmericansandArabsaredifferentintheirspacehabits.Arabspreferclosecontact.Dr.HallhasexplainedthattheArabsbelon

1970wasWorldConservationYear.TheUnitedNationswantedeveryonetoknowthattheworldisindanger.Theyhopedthatgovern

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