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【单选题】
It is surprising that fewer students were prepared to undertake the ___ to hand in written work on a regular basis, or to study over long periods.
A. engagement
B. commitment
C. authority
D. aspiration
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答案
B
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In 1988 the old system was ___ in the country and a new system was introduced to take effect in 1990.
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We should not ___ ourselves to the classroom. We should go out of the classroom, see the world and talk to others as much as we can.
A. entertain
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I have always been grateful ___ Fred __the generous and helpful information when I was at the crossroads.
A. to … for
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I think we both need to ___ the past, be happy about what we had for a time, learn from our experiences, and move on from there.
A. let go of
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My brother and I managed to ___ with each other and we soon made peace after a week’s quarrel.
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The two robbers in a stolen car tried to ___ a police roadblock (路障), but faile D.
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Because of his long illness, Lee’s English level had dropped, but he was determined to ___ the other students by working harder.
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A. lean on
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Women have a greater ability to ___ names with faces than men do, and they are also better at recalling lists.
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不是除氧器给水溶解氧不合格的原因 ___。
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加热器满水会使被加热的给水(或凝结水)出口温度___
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1号机6号低加水位高一值是___mm。
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