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【单选题】
科学家用催化剂将苯酚（X）和1,3-二羰基化合物（Y）合成一种重要的具有生物活性的结构单元——苯并呋喃（Z），W是中间产物（R 1 、R 2 均为烷烃基）。则下列有关叙述正确的是A.
反应①属于加成反应
B.
X、Y、W、Z都能使酸性高锰酸钾褪色
C.
X、Y、W、Z都能与NaOH溶液反应
D.
1 mol的X或W最多均能够消耗3 mol Br 2
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举一反三
【单选题】Which word is not similar to "well-known" in meaning?
A.
desirable
B.
noted
C.
famous
D.
renowned
【多选题】Which of the following word or words are used in the same way of word building with "kid-centered"? A、 ice-cold B、 color-coded C、 world-famous D、 handmade
A.
ice-cold
B.
color-coded
C.
world-famous
D.
handmade
【单选题】A wonderful example of this is the fashion designer, Vera Wang, who originally studied art history. Over time, Wang paired her studies in art history with her love of fashion and turned it into a pass...
A.
It means a passion for design
B.
It means the whole(整个的） sentence " Over time, Wang paired her studies in art history with her love of fashion and turned it into a passion for design"
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