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【单选题】
某化合物在紫外光区204nm处有一弱吸收带,在红外特征区有如下吸收峰:3400cm-1—2400 cm-1处有宽而强的吸收,1710 cm-1处有强吸收峰,则该化合物可能是:( )
A.
醛
B.
酮
C.
羧酸
D.
酯
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【单选题】办婚礼时,新娘出门要站在一个画有八卦太极图的米筛中换上新鞋是福建( )的客家人的习俗。
A.
泉州
B.
龙岩
C.
厦门
D.
福州
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【单选题】( )客家人办婚礼时,新娘出门要站在一个画有八卦太极图的米筛中换上新鞋,既“过米筛”
A.
广东梅州
B.
福建龙岩
C.
福建泉州
D.
广东中山
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【单选题】Those who trifle with you feel the____ of the storm.
A.
fury
B.
anger
C.
rage
D.
indignation
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【单选题】What kind of people had the advantages among ancient ancestors?
A.
Those who could weave with threads.
B.
Those who possessed the highest level of language.
C.
Those who were creative in tool-making.
D.
Those who could play magic.
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【单选题】Since the mid-1980's, growing numbers of Asians __ _ in New Zealand, and they ___about six percent of the total population．
A.
had settled; make of
B.
have settled; make up
C.
settled; make up of
D.
are settling; make up for
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【多选题】下列对流换热过程计算中的特征尺寸应该如何选?
A.
特征尺寸应选影响对流换热最大的尺寸。
B.
横掠圆柱强迫对流换热一般取圆柱外径。
C.
竖直圆柱自然对流换热一般取圆柱外径。
D.
水平圆柱自然对流换热一般取圆柱外径。
E.
圆管内强迫对流换热一般取管内径。
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【简答题】Scientists,those who are endowed with peculiar capability of thinking and ysis and with endless patience in observing and data collecting,always try hard to discern the nature and seek for the reg...
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【判断题】若一个复数项级数是条件收敛的,则该级数一定也是绝对收敛的。
A.
正确
B.
错误
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【单选题】Since mid July, many areas in Shaanxi continuous heavy rain, leading to frequent natural disasters.
A.
saw
B.
had seen
C.
has seen
D.
have seen
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【单选题】Since the mid-19th century, the Whigs and the Tories became______.
A.
the Liberal Party and the Conservative Party
B.
the Liberal Party and the Republican Party
C.
the Democratic Party and the Republican Party
D.
the Democratic Party and the Conservative Party
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相关题目：
【单选题】办婚礼时,新娘出门要站在一个画有八卦太极图的米筛中换上新鞋是福建( )的客家人的习俗。
A.
泉州
B.
龙岩
C.
厦门
D.
福州
查看完整题目与答案
【单选题】( )客家人办婚礼时,新娘出门要站在一个画有八卦太极图的米筛中换上新鞋,既“过米筛”
A.
广东梅州
B.
福建龙岩
C.
福建泉州
D.
广东中山
查看完整题目与答案
【单选题】Those who trifle with you feel the____ of the storm.
A.
fury
B.
anger
C.
rage
D.
indignation
查看完整题目与答案
【单选题】What kind of people had the advantages among ancient ancestors?
A.
Those who could weave with threads.
B.
Those who possessed the highest level of language.
C.
Those who were creative in tool-making.
D.
Those who could play magic.
查看完整题目与答案
【单选题】Since the mid-1980's, growing numbers of Asians __ _ in New Zealand, and they ___about six percent of the total population．
A.
had settled; make of
B.
have settled; make up
C.
settled; make up of
D.
are settling; make up for
查看完整题目与答案
【多选题】下列对流换热过程计算中的特征尺寸应该如何选?
A.
特征尺寸应选影响对流换热最大的尺寸。
B.
横掠圆柱强迫对流换热一般取圆柱外径。
C.
竖直圆柱自然对流换热一般取圆柱外径。
D.
水平圆柱自然对流换热一般取圆柱外径。
E.
圆管内强迫对流换热一般取管内径。
查看完整题目与答案
【简答题】Scientists,those who are endowed with peculiar capability of thinking and ysis and with endless patience in observing and data collecting,always try hard to discern the nature and seek for the reg...
查看完整题目与答案
【判断题】若一个复数项级数是条件收敛的,则该级数一定也是绝对收敛的。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Since mid July, many areas in Shaanxi continuous heavy rain, leading to frequent natural disasters.
A.
saw
B.
had seen
C.
has seen
D.
have seen
查看完整题目与答案
【单选题】Since the mid-19th century, the Whigs and the Tories became______.
A.
the Liberal Party and the Conservative Party
B.
the Liberal Party and the Republican Party
C.
the Democratic Party and the Republican Party
D.
the Democratic Party and the Conservative Party
查看完整题目与答案
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