题目内容

A．infectionB．infectC．infectingD．infected

A. infection
B. infect
C. infecting
D. infected

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A．forB．withC．toD．at

A. for
B. with
C. to
D. at

A．whoB．thatC．whoseD．in which

A. who
B. that
C. whose
D. in which

A．forwardB．aboutC．downD．away

A. forward
B. about
C. down
D. away

A．weakenB．disableC．lessenD．cripple

A. weaken
B. disable
C. lessen
D. cripple