A．Place the food on warmer spots.B．Use prepared feed mixtures only.C．Avoid using any c
A. Place the food on warmer spots.
B. Use prepared feed mixtures only.
C. Avoid using any contaminated food.
D. Continue the feeding till it gets warm.
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Which of the following may archaeologists currently place least importance on？
A. The economy.
B. The environment.
C. People's daily life.
D. A single site.
Why does the conclusion drawn from Bahn's words seem contradictory？
A. More analysis can be done with less samples.
B. Excavation diminishes with improved technology.
C. Better materials can be obtained from painstaking excavation.
D. Excavation is time-consuming but fruitless.
As for their children, parents are supposed by Darrah to
A. involve them in volunteer work as much as they can.
B. teach them how to arrange their schedule.
C. give them sufficient spare time.
D. make full arrangement for their after-school time.
The word "it" (Line 8, Para. 2) most probably refers to
A. the First Amendment.
B. cloning experiment.
C. the US government.
D. recombinant DNA.
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