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【单选题】
如图，△ABC是等边三角形，分别延长CA，AB，BC到A′，B′，C′，使AA′=BB′=CC′=AC，若△ABC的面积为1，则△ 的面积=（ ）A.
5
B.
6
C.
7
D.
无法确定
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反馈参考答案：
举一反三
【判断题】Investigators have reported improved outcomes for this patient population with the use of combined chemotherapy. (Introduction section of a paper)
A.
正确
B.
错误
【简答题】已知偶函数 在 上是增函数，试问 在 上是增函数还是减函数？请证明你的结论。
【简答题】A 21-year-old college student presents to the clinic complaining of a sudden onset of chills and fever , muscle aches , headache , fatigue , sore throat , and painful nonproductive cough 3 days prior ...
【判断题】Alipogene tiparvovec or Glybera, e.g., at a cost of $1.6 million per patient, was reported in 2016 to be the world's most expensive drug.
A.
正确
B.
错误
【单选题】The patient reported that he had taken the subway and then ________ to a bus. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
changed
B.
went
C.
got
D.
transferred
【单选题】The patient reported reduced mobility.
A.
ability to speak
B.
ability to read
C.
ability to move
【简答题】What does the word “stressed” mean in sentence “Zhong stressed that only one patient reported a 24-day incubation period”?
【简答题】函数 在 上是增函数，函数 是偶函数， 则 的大小关系是 ．
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