The samples________in quality but were generally acceptable. [ ]A. varied

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The samples________in quality but were generally acceptable. [     ]
A. varied
B. changed
C. disagreed
D. exchanged

答案

举一反三

— How much did the guy ________ you to fix your 3G mobile phone?
— I don"t remember, but it was quite a lot.[     ]
A. cost
B. spend
C. charge
D. take

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I get ________ in this difficult situation and don"t know what to do. [      ]
A. stuck
B. affected
C. held
D. concerned

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Scientific research results can now be quickly ________ to factory production. [     ]
A. used
B. applied
C. tried
D. practiced

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He ________ whether the articles exhibited at the back of the department store were for sale. [     ]
A. demanded
B. decided
C. required
D. requested

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I hadn"t seen him for 10 years but I ________ him at first sight.[     ]
A. realized
B. spotted
C. watched
D. observed

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