They ______ the launch of their new company only a year ago.A、announceB、are ann

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问题 They ______ the launch of their new company only a year ago.

选项 A、announce
B、are announcing
C、have announced
D、announced

答案 D

解析 The simple past of the verb is necessary because of the particular past time reference a year ago. Choice (A) is the simple present. Choice (B) is the present continuous. Choice (C) is the present perfect.

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They ______ the launch of their new company only a year ago.A、announceB、are ann

Itsconsumershaveasincereinterestinthebehaviorofthecompany_______they

AERONAUTICSYSTEMS,INC.,theBerlin-basedcompanyalsoknownasAeroSys,has

Ifthecompany______indebt,theaccountantwouldbethefirsttoknow.A、wereB

Ourcompany______MetroMessengerServicesince1998.A、useB、usedC、hadusedD、

Ifthebills______infivedays,thecompanywillseekdamages.A、weren’tpaidB、

Thiscompanyattemptstomakeitsemployees______likefamily.A、feelingB、feels

Thecompanyoffersa______planforitsworkers.A、retirementB、retiringC、retire

Thecompany’squarterlyearningswereup;,the______officersfeltsatisfied.A、n

CentralEngineeringCompanyBoardofDirectorsMee

CentralEngineeringCompanyBoardofDirectorsMee

Manufacturershavelearnedthatconsumersplaceahighvalue(150)conveniencea

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TheTruthaboutLyingRickyGervais’snewfilm,The

个案调查的主要特点包括()。A.对特点对象的调查研究比典型调查更具体、深入、

患者，男，50岁。夜间右足背蛇咬伤8小时，蛇种类不清，局部疼痛不剧烈，逐渐出现头

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