题目内容

The reason why the four other climate pollutants can disappear in a matter of weeks is that______.

A. nearly 100 ozone-depleting chemicals have been phased out under the Montreal Protocol
B. they account for as much as 40 percent of current warming
C. more than 100 countries support a shift to the safer HFC alternatives
D. they are short-lived in the atmosphere

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若要对某点进行比例、旋转变换,首先需要将坐标原点平移至该点,在新的坐标系下做比例或旋转变换,然后在将原点平移回去。()

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最常见的关节脱位是()

A. 先天性脱位
B. 外伤性脱位
C. 习惯性脱位
D. 病理性脱位
E. 完全脱位

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将线段两端点的分区编码逐位取逻辑“与”,若结果为零(非零),则该线段相对于剪裁窗口必为完全不可见。()

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According to the paragraph 3. California has cut the warming effect from diesel emissions

A. using particulate filters on cars and trucks and switching to low-sulfur diesel
B. turning to efficient biomass cook stoves instead of using traditional mud stoves
C. replacing kerosene lamps in villages with solar lamps
D. deploying modern brick kilns

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The reason why the four other climate pollutants can disappear in a matter of weeks is that______.

A. nearly 100 ozone-depleting chemicals have been phased out under the Montreal Protocol B. they account for as much as 40 percent of current warming C. more than 100 countries support a shift to the safer HFC alternatives D. they are short-lived in the atmosphere

若要对某点进行比例、旋转变换,首先需要将坐标原点平移至该点,在新的坐标系下做比例或旋转变换,然后在将原点平移回去。()

最常见的关节脱位是()

将线段两端点的分区编码逐位取逻辑“与”,若结果为零(非零),则该线段相对于剪裁窗口必为完全不可见。()

According to the paragraph 3. California has cut the warming effect from diesel emissions

A. nearly 100 ozone-depleting chemicals have been phased out under the Montreal Protocol
B. they account for as much as 40 percent of current warming
C. more than 100 countries support a shift to the safer HFC alternatives
D. they are short-lived in the atmosphere