问题:
A、"endangered".B、"frightened".C、"killed".D、"angered".
问题:
A、small enough.B、well protected.C、carefully monitored.D、large enough.
问题:
A、Because elephants are difficult to catch.B、Because it is not possible to count elephants from a plane.C、Because it is not possible to keep track of ...
问题:
A、they are different in size.B、they scatter all over the region.C、they are different in decay rate.D、they are different in quality.
问题:
A、Andrew Plumptre.B、Katy Payne.C、Anthony Chifu Nchanji.D、the writer of the article.
问题:
A、Italian family. B、Russian family.C、English family. D、German family.
问题:
A、On your chair.B、On the table.C、On your lap. D、On your plate.
问题:
A、soup. B、sandwiches.C、cookies. D、hamburgers.
问题:
A、your forehead.B、your mouth,C、your nose.D、your face.
问题:
A、the levels of adrenal hormones have nothing to do with brain aging.B、changes in the levels of adrenal hormones can affect brain aging.C、chronic stre...
问题:
A、The kidneys.B、The adrenal glands.C、The stress hormone.D、The hippocampus.
问题:
A、may change dramatically.B、may stop functioning.C、may remain unaffected.D、may be seriously damaged,
问题:
A、may expand.B、may shrink.C、may disappear.D、may function better.
问题:
A、the adrenal glands will produce cortisol.B、the kidneys will shrink rapidly.C、the hippocampus will produce cortisol.D、the brain will work more effici...
问题:
A、1978.B、1960.C、1997.D、2000.