题目内容

What will be a possible threat to plants in the future'?

A. Storms and floods.
B. Disease and fire.
C. Rapid increase of the animal population.
D. Less space for their grow

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What is the concern of ordinary people about the "Greenhouse Effect"?

A. Whether global warming will speed up in the future.
B. Whether it will lead to widespread food shortage.
C. Whether it can be detected and checked.
D. Whether it will affect their own lives.

氨渗漏试验是将含氨()(体积分数)的压缩空气通人容器内,并在焊缝及连接部位贴上比焊缝宽20mm的试纸。

A. 0.05
B. 0.03
C. 0.02
D. 0.01

在Excel中排序时如果选择多个关键宇段,则所有关键字段必须选用相同的排序顺序 (如递增或递减)。 ()

A. 正确
B. 错误

听力原文: This is your local weather update with meteorologist Chris Lee. We can look forward to a beautiful evening, with warm temperatures and a lovely sunset. Sunset will occur at 8:30, and the beach is the perfect place to watch it. It's better to stay on shore, though. There is a fog warning out for small boats tonight. A light fog will roll in just after sunset and stay with us all night. The sun rises tomorrow morning at 5:45. Light winds in the morning will blow the fog out to sea, so we'll enjoy sunshine and more warm temperatures tomorrow afternoon. Take advantage of the nice weather now because rain is predicted for later in the week.
What time will the sun set tonight?

A. 5:00.
B. 5:45.
C. 8:00.
D. 8:30.

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