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【单选题】
当烷基取代的环丙烷与溴化氢反应时,溴加到A.
含氢较多的环碳原子上
B.
含氢较少的环碳原子上
C.
烷基含氢较多的碳原子上
D.
烷基含氢较少的碳原子上
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following is used to support the claim that the emperor died of a natural death?
A.
He had a good appetite for various kinds of food.
B.
He had a habit of drinking little and mixed it with water.
C.
He had lost 11 kilos during the last five months of his life.
D.
He was deported to the island of St Helena.
【单选题】The main idea of this passage is that______.
A.
the emperor of the Qin Dynasty was a slave driver
B.
invading wars were common in ancient China
C.
the common people of ancient China were very poor
D.
the human achievement of the Great Wall is widely appreciated
【判断题】The story of the emperor and the philosopher tells us that enjoyment of life and the cultivation of good virtuesv can be used to measure success.
A.
正确
B.
错误
【判断题】It was the emperor of the Chenghua reign that improved the color process, and created the bright blue that appealed to the Oriental aesthetic sense.
A.
正确
B.
错误
【简答题】举例说明微生物的营养类型与特点
【判断题】It was the emperor of the Chenghua reign that improved the color process, and created the bright blue that appealed to the Oriental aesthetic sense.
A.
正确
B.
错误
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