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【单选题】
关于细胞的遗传物质,下列哪项叙述有误A.
为多条DNA分子
B.
均分布在细胞核中
C.
其DNA分子常与组蛋白结合形成染色质
D.
在细胞生命活动的不同阶段有不同的形态
E.
载有种类繁多的基因
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举一反三
【单选题】The 1988 drought in North America was probably caused by shifts in the temperature patterns of large equatorial stretches of the Pacific Ocean. The drought, therefore, is not evidence for the hypothes...
A.
Most pre-1988 droughts for which we have records were preceded by shifts in temperature patterns in the Pacific Ocean.
B.
There has been no warming trend in the United States over the last 100 years.
C.
The consequences of global warming occur long after the actual emission of pollutants into the atmosphere.
D.
Emissions of carbon dioxide gas into the atmosphere increased in 1988.
E.
A global warming trend could cause increases in the frequency and severity of shifts in temperature patterns in the Pacific Ocean.
【单选题】At the beginning of the 17th century the English language was brought to North America by colonists from England who used the language spoken in England, that is,______, the language used by Shakespea...
A.
Elizabethan English
B.
Edwardian English
C.
King's English
D.
Standardized English
【判断题】By the end of the Civil War, the North was in a state of political upheaval, social disorder and economic decay.
A.
正确
B.
错误
【简答题】8. All __________ with the north was
stopped by the snowstorm.
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