【单选题】【消耗次数：1】
<p>下列哪一种措施可以提高疫苗接种率？</p>
①
限制疫苗接种时间
②
提供便捷的接种服务
③
随意更改疫苗接种计划
④
增加疫苗费用
参考答案：
复制
纠错
相关题目
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<p>硅的提纯要求很高，需要逼近极限的（）以上。</p>
①
0.9999%
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1.9999999%
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9.999999%
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99.9999999%
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did
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have done
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has done
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comes
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is coming
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had come
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came
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have not
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didnt have
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dont have
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have not any
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didn’t
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not did
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didn’t do
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didn’t did
【单选题】
15.- _____ is your English teacher like? - He is tall and thin.
①
How
②
What
③
Which
④
/
【单选题】
3.Some of us would like to act the story ____ it isn’t finished yet.
①
but
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and
③
though
④
so
【单选题】
10. I _______ trouble finding the place.
①
didn’t have many
②
haven’t a great deal of
③
didn’t have much
④
hadn’t a lot of
【单选题】
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①
let us to go home
②
let us go home
③
let us go to home
④
let we go home