选择题：He argues that it’s essential to solve a （） problem first be

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题目类型：选择题
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He argues that it’s essential to solve a （） problem first because by doing that you’ll eliminate a root cause of other problems.
A.valuable
B.trivial
C.fundamental
D.tremendous

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It is （） that 3% of the population have food allergies, with

It is （） that 3% of the population have food allergies, with milk, egg and nuts being the most commo

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数控编程进位暂停按纽工作是（）。

数控编程进位暂停按纽工作是（）。A．自动正转时，刀具快速停止，主轴停止B．自动正转时，刀具快速停止，主轴不停C．自动正转时，刀具减速停止，主轴停止D．自动正转时，刀具减速停止，主轴不停

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（） is experienced whenever the results you are expecting do

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The World Health Organization (WHO) notes that essential nut

The World Health Organization (WHO) notes that essential nutrients are （） in supporting a person’s g

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Caffeine may be able to help you stay （） and pay attention t

Caffeine may be able to help you stay （） and pay attention to a task, but it does not help to preven

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