D．r. Myers and other researchers hold that ________.

[A] people should look for a baseline that can’t work for a longer time

[B] fisheries should keep the yield below 50% of the biomass

[C] the ocean biomass should restored its original level

[D] people should adjust the fishing baseline to changing situation

[单选题]D．r Myers and other researchers hold thatA． people should look for a baseline that can’t work for a longer time. B. fisheries should keep the yield below 50% of the biomass C. the ocean biomass should restored its original level. D. people should adj

[单选题]We can infer from Dr. Myers and Dr. Worm’s paper that ________.[A] the stock of large predators in some old fisheries has reduced by 90%[B] there are only half as many fisheries as there were 15 years ago[C] the catch sizes in new fisheries are only

[单选题]We can infer from Dr Myers and Dr. Worm’s paper thatA． the stock of large predators in some old fisheries has reduced by 90%. B. there are only half as many fisheries as there were 15 years ago. C. the catch sizes in new fisheries are only 20% of the

[单选题]Researchers hold that boredom results from______.A．natural surroundingsB．various kinds of factorsC．sensitive personalitiesD．subjective perceptions

[单选题]D．r. Brosnan and Dr. de Waal have eventually found in their study that the monkeys ________.[A] prefer grapes to cucumbers[B] can be taught to exchange things[C] will not be cooperative if feeling cheated[D] are unhappy when separated from others

[单选题]A．ccording to the third paragraph, Dr. Davies implies that_____.［A］ cosmetic surgery, though costly, is worth having［B］ cosmetic surgery is too expensive［C］ cosmetic surgery is necessary even for the average person［D］ cosmetic surgery is mainly for t

[单选题]D．r. Zhang was always ____ the poor and the sick, his private clinic often providing them with free medical care.A． tended by B absorbed in C concerned about D reminded of

[主观题]Why are you working in a field other than the one in which you have a degree?

[单选题]D．r. Singer thinks men are more suitable to maintain justice and issue punishment than women because _______ .A． men's brain's empathy centers remained dull when punishment was executedB． women's pleasure centers were lit up with punishment implem

[单选题]Now Dr. Ross is bringing a welcomed medical revolution to the world_________ so many people need it.A． thatB． whereC． howD． which