Many scientists _____their own eyes and ears than the theories of the ancients.

[单选题]Scientists have many theories about how the universe ___ into being.A． cameB. was comingC． had comeD. would come

[单选题]Passage ThreeMany theories about the origin of the ocean have been proposed by scientists. The most widely accepted one is that the earth at some time in its very early history became hot enough to melt the materials from which it was formed. While i

[单选题]With so many eyes ______on him, he was too nervous to speak.A． fixedB． fixingC． to fixD． being fixed

[单选题]The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.A． whatB． whichC． thatD． though

[单选题]Many scientists have been probing psychological problems.A．solvingB．exploringC．settlingD．handling

[单选题]D．o scientists know how many cryptic species exist?A．Not yet.B．Yes, they do.C．They will know the answer in another one or two years.D．They will never know the answer.

[试题]7.In spite of many risks, scientists will finally［A］anenvironmentwithoutultravioletlight［B］alotofhomes［C］anEarthlikeenvironment［D］anenvironmentwithatmosphere

[单选题]Many theories concerning the causes of juvenile delinquency (crimes committ

[单选题]Many theories concerning the causes of juvenile delinquency (crimes committ

[单选题]Many theories concerning the causes of juvenile delinquency (crimes committ