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【简答题】
如图所示： （1）指出图中有多少个边长为a的正方形？有多少个边长为b的正方形？有多少个两边长分别为a和b的矩形？ （2）请在图中指出面积为（a+2b） 2 的图形，利用乘法公式计算结果，并利用图形的关系验证相应的结果．
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举一反三
【单选题】Why did the man have a problem?
A.
Because he did not have a parking permit.
B.
Because he parked in a visitor's lot.
C.
Because he used a different car.
D.
Because he was not a student at the university.
【单选题】He chose the present company location because
A.
financial support was available in that part of the country.
B.
it would be easy to expand the premises.
C.
there was already a skilled workforce.
【单选题】The______ the doctor faced was whether he should tell the patient the truth.
A.
dilemma
B.
paradox
C.
junction
D.
conflict
【单选题】Which one is true about the man's experience?
A.
He is good at debating.
B.
Once he took a part time job as a student.
C.
He likes sticking to the same job.
D.
He knows something about advertising.
【单选题】萌萌的妈妈认为，学前这几年幼儿的智力开发特别重要，必须打好基础。所以萌萌妈妈反对游戏，下了很大的功夫给她讲故事，读儿歌，教她学算术、学写字、背古诗。关于萌萌妈妈的做法，下列说法错误的是（ ）。
A.
萌萌妈过分重视萌萌智力的发展，忽视了其他能力的培养
B.
萌萌妈妈忽视学习品质的培养，单纯追求知识技能学习的做法是短暂而有害的
C.
“玩物丧志”萌萌妈反对玩游戏的做法是可取的
D.
萌萌妈妈忽视了萌萌基本的生活自理能力的培养
【简答题】无论是两项资产还是多项资产构成的投资组合，投资组合的收益率都不会低于所有单个资产中的最低收益率，投资组合的风险也不会高于所有单个资产中的最高风险。()
【单选题】He chose the present company location because
A.
financial support was available in that part of the countr
B.
B it would be easy to expand the premise
C.
C there was already a skilled workforc
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