【单选题】 You can ______ different kinds of people, dictionaries or encyclopedia to find out what you wish to know.
A．contact
B．contain
C．consult
D．convert
A．contact
B．contain
C．consult
D．convert
【单选题】 The company used so much coal that it has a train to ______ the delivery process.
A．transmit
B．transport
C．facilitate
D．diminish
A．transmit
B．transport
C．facilitate
D．diminish
【单选题】 Which of the following statements is true
A．El Nino results from droughts, floods and bushfires.
B．El Nino brought rain to most areas that were affected.
C．When El Nino appeared, some of the world' s rainforests were attacked by droughts.
D．Most areas that were affected by El Nino got droughts.
A．El Nino results from droughts, floods and bushfires.
B．El Nino brought rain to most areas that were affected.
C．When El Nino appeared, some of the world' s rainforests were attacked by droughts.
D．Most areas that were affected by El Nino got droughts.
【单选题】 The food was divided ______ according to the age and size of the child.
A．equally
B．individually
C．sufficiently
D．proportionally
A．equally
B．individually
C．sufficiently
D．proportionally
【单选题】Instead of advancing the public discussion of biotechnology,David Shenk succeeds merely in displaying his general ignorance and unfounded fears in his recent article "Biocapitalism" His claim that "no living creature has ever before been able to upgrade its own operating system" ignores transduction ( the act or process of transferring genetic material or characteristics from one bacterial cell to another) and bacterial conjugation (the temporary union of two bacterial cells), which are ways organisms have "upgraded" their own genomes with novelDN
A、for hundreds of millions of years.
A、first-year biology major could have told him that. For Shenk to suggest that his daughter may someday use a before-birth genetic test for "quick-wittedness" is extremely dun-witted, ignoring the complexity of polygenetic traits while embracing a shallow genetic determinism. Nurture ——utterly absent from his discussion ——really does matter.
Finally, worrying about the effects on the gene pool of a "culture in which millions choose the same desirable genes" is worse than pointless. The United Nations projects an approximate human population of eight billion by the year 2020.Even if Shenk’s worst fears are realized, and the wealthy parents of 100 million children can and do select for a polygenetic trait ——say, blue eyes ——this would present only a modest shift in the gene pool of 1 in 80, or 1.25 percent, assuming that none of those children would otherwise have been born with blue eyes.But what truly matters for the gene pool in the 1000-year-long run is the capacity of this trait to grant reproductive success in subsequent generations. Whatever advantage blue eyes currently grant in acquiring a mate presumably derives in part from the trait’s relative scarcity.Elementary economics shows that if you flood the market with an asset, you diminish the relative value of that asset: more blue eyes will make blue eyes less sexy. Is it really too much to expect familiarity with either biology or economics from an essay entitled "Biocapitalism"
The tone of this passage is mainly.
A、humorous
B．of a matter-of-fact
C．bitter and ruthless
D．emotional
A、for hundreds of millions of years.
A、first-year biology major could have told him that. For Shenk to suggest that his daughter may someday use a before-birth genetic test for "quick-wittedness" is extremely dun-witted, ignoring the complexity of polygenetic traits while embracing a shallow genetic determinism. Nurture ——utterly absent from his discussion ——really does matter.
Finally, worrying about the effects on the gene pool of a "culture in which millions choose the same desirable genes" is worse than pointless. The United Nations projects an approximate human population of eight billion by the year 2020.Even if Shenk’s worst fears are realized, and the wealthy parents of 100 million children can and do select for a polygenetic trait ——say, blue eyes ——this would present only a modest shift in the gene pool of 1 in 80, or 1.25 percent, assuming that none of those children would otherwise have been born with blue eyes.But what truly matters for the gene pool in the 1000-year-long run is the capacity of this trait to grant reproductive success in subsequent generations. Whatever advantage blue eyes currently grant in acquiring a mate presumably derives in part from the trait’s relative scarcity.Elementary economics shows that if you flood the market with an asset, you diminish the relative value of that asset: more blue eyes will make blue eyes less sexy. Is it really too much to expect familiarity with either biology or economics from an essay entitled "Biocapitalism"
The tone of this passage is mainly.
A、humorous
B．of a matter-of-fact
C．bitter and ruthless
D．emotional
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