The invention of artificial hearts marked a turning point in the battle ________

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The invention of artificial hearts marked a turning point in the battle ________ heart disease.[     ]
A. among
B. for
C. against
D. between

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举一反三

The boy talked his mother _____ buying him a new homecomputer.[     ]
A. of
B. over
C. to
D. into

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-Was it in April, 1970 ________ China succeeded ________ sending its first satellite into space?
-Yes, that"s right.[     ]
A. when; in
B. that; on
C. which; on
D. that; in

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The boy was too young to write, but he sent his father a letter and told him what had happened _______
drawing pictures.A. with  B. inC. to  D. by[     ]
A. with
B. in
C. to
D. by

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_____ so many doctors and nurses around her, the sick girl didn"t feel lonely at all.[     ]
A．For
B．In
C．With
D．By

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I think that the desk in the shop differs _____ the one I have at home _____ colour and size.[     ]
A. from; about
B. from; in
C. in; from
D. with; on

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