◎ 题干
I'm sure scientists will            a way to solve the problem of sand storm (沙尘暴).
[     ]
A.set off
B.catch up with
C.begin with
D.come up with
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“I'm sure scientists will a way to solve the problem of sand storm (沙尘暴). [ ]A.set offB.catch up with C.begin with D.come up with …”主要考查了你对  【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。