What are the effects of caffeine?
A.In moderate doses, caffeine makes people think more quickly and clearly.
B.In high doses, caffeine makes people think more quickly and clearly.
C.Caffeine has no effect on most peopl
E.
A.In moderate doses, caffeine makes people think more quickly and clearly.
B.In high doses, caffeine makes people think more quickly and clearly.
C.Caffeine has no effect on most peopl
E.
What method does the author mainly use in the passage to achieve better effects?
A.Examples.
B.Listing.
C.Comparisons and listing.
D.Analysis and examples.
What is the worst thing about hurricanes?
A.The destructive effects of water.
B.The heat they release.
C.The powerful movement of the sea.
D.Their strong winds.
What negative effects may the intermarriage most probably cause?
A.A divorce.
B.Much suffering in children's minds.
C.A big gap between the parents.
D.All of the above.
What is NOT suggested for reducing the effects of ear discomfort?
A.Take plenty of fluids.
B.Chew gum during the flight.
C.Yawn occasionally.
D.Drink a little wine.
A.which
B.whose
C.what
D.that
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