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【单选题】
芳烃是指( )A.
分子中含有苯环的化合物
B.
分子组成符合 CnH2n+6 通式的一类有机物
C.
分子中含有一个或多个苯环的烃
D.
苯和苯的同系物的总称
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反馈参考答案：
举一反三
【单选题】First, we decide whether we are superior or inferior to others on certain dimensions, such as attractiveness, intelligence, popularity, etc.
A.
we decide whether we are superior or inferior to others on certain dimensions
B.
we decide whether we are superior or inferior to others
C.
we decide whether we are superior or inferior
【单选题】First, we decide whether we are superior or inferior to others on certain dimensions, such as attractiveness, intelligence, popularity, etc.
A.
First, we decide whether we are superior or inferior .
B.
First, we decide whether we are superior or inferior to others on certain dimensions.
C.
First, we decide whether we are superior or inferior to others.
【简答题】According to the passage, when we decide to go for it, we only consider______. [A] safety [B] action [C] result [D] situation
【简答题】照例子，写算式． 例：60÷20=3；÷20≈3
【单选题】According to the passage, when we decide to go for it, we only consider______.
A.
safety
B.
action
C.
result
D.
situation
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