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【简答题】
写出一个一元二次方程，使它有两个不相等的实数根______．
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皮皮学刷刷变学霸
举一反三
【简答题】The website also has responses to ______.
【单选题】以下关于创新的说法,正确的是( )
A.
创新来源于实践需要和对前人、他人成果的继承与总结
B.
创新因不墨守成规，可以凭空产生
C.
创新就是标新立异
D.
创新能力是一种天生的能力
【简答题】若 17 的整数部分为x，小数部分为y，则 x 2 + 1 y =______．
【单选题】Task Two - Responses &8226;For questions 18--22, match the extracts with the responses, listed A-H. &8226;For each extract, decide which response the company made to the problem. &8226;Write one lette...
B.
New shares were issued.
C.
A takeover bid was accepted.
D.
Low-cost products were introduced.
E.
A partnership abroad was formed.
F.
One division was sold off.
G.
Some products were rebranded.
H.
A cost reduction programme was introduced.
【简答题】甲烷和氯气在光照的条件下发生的反应属于（ ）
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