填空题

As Mark’s study indicated, interruption is a highly undesirable feature in high-tech office work, and therefore we must find a way to avoid them.

【参考答案】

N

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单项选择题

A growing plant needs water for all of the following except ______.

A．forming sugars
B．sustaining actively growing parts as well as woody stems
C．absorbing mineral elements
D．taking in carbon dioxide from the air

单项选择题

According to the passage, which of the following statements is TRUE

A．The woody stems contain more water than the leaves.
B．Only part of the carbon dioxide in the plants is synthesized.
C．The mineral elements will not be absorbed by the plant unless dissolved in their roots.
D．Air existing around the leaf is found to be saturated.

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