A.that
B. this
C. it
D. one
[单选题]令x=2cost,则等于:()A . -16sin2t·cos2tdtB . -16sin2t·cos2tdtC . 16sin2t·cos2tdtD . 16sin2t·cos2tdt
[问答题]x=sint,y=1+cost,则dy/dx =_______。
[单选题]__________the sun is the central body of the solar system so the nucleus is the core of the atom.A.WhenB.IfC.Now thatD.Just as
[单选题]The central theatre has a seating __ of more than 3,000 people.A. capabilityB. capacityC. abilityD. facility
[主观题]LivinginthecentralAustraliandeserthasitsproblems._________obtainingwaterisnottheleast.A.)forwhichB)towhichC.)ofwhichD)inwhich
[单选题]As a revising chamber,the House of Lords is expected to( )the House of Comm
[单选题]As a revising chamber,the House of Lords is expected to( )the House of Comm
[单选题]If a country's inflation rate is below the central bank's target rate, the
[单选题]Three concepts are central to the OSI model: Service, Interface andA.LayersB.applicationsC.ProtocolsD.Networks
[单选题]) (71 now plays a central role in the global economy.(71)A. DataB. CPUC. InformationD. Operation