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【简答题】
观察下列式子: 14 2 +3 2 ≥2×4×3 22 2 + (-2) 2 ≥2×(-2)×1 3 42 2 +9 2 ≥2×2×9 通过观察、归纳、比较: 2010 2 +2011 2 2 × 2010 × 2011 请用字母 a , b 写出反映上述规律的表达式 .
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反馈参考答案：
举一反三
【简答题】What service will help you to save more time? ____________________
【简答题】请写出如下代码执行的结果。 $a
= 'hello'; $hello
= 'PHP'; $PHP
= 'best'; echo $$$a;
【单选题】____________, the less time you have to see them.
A.
The more people you know
B.
More you know people
C.
The more you know people
D.
More people you know
【简答题】请写出如下代码执行的结果。 $a = 'hello'; $hello = 'PHP'; $PHP = 'best'; echo $a; echo $$a; echo $$$a;
【单选题】The more time you spend on the Internet．the less time you are with your family and friends．
A.
Right．
B.
Wrong．
C.
Doesn’t Say．
【简答题】The more you put your time and effort into the project,___________________________________________________________ (你越可能成功).
【单选题】. ---You must have had a good time at the party last night, didn’t you ? ---________. Actually, it was a bit boring.
A.
Oh, great
B.
Not really
C.
I suppose so.
D.
That’s OK
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