.Elephants, which are the largest mammals on the earth, have almost no natural enemies ______ human beings.
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A
rather than
B
other than
C
more than
D
less than
推荐题目
The experiment  the discovery of a cure for cancer.
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A
resulted in
B
resulted from
C
brought in
D
ended in
They closed the road in a(n) __________ to reduce traffic in the city.
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A
response
B
meaning
C
intention
D
attempt
 –Why has Tom looked unhappy recently? –He has some difficulty ______ with his new classmates at school.
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A
getting over  
B
getting in   
C
getting along
D
getting down