2010年福建省普通高中毕业班质量检查（英语）

适用年级：高三
试卷号：89176

试卷类型：会考
试卷考试时间：2017/7/19

1.选择题(共2题)

已知 $a^{2} + b^{2} = 1, b^{2} + c^{2} = 2, c^{2} + a^{2} = 2$ ，则 $a b + b c + c a$ 的最小值为（）

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已知 $a^{2} + b^{2} = 1, b^{2} + c^{2} = 2, c^{2} + a^{2} = 2$ ，则 $a b + b c + c a$ 的最小值为（）

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Any help from you will be greatly appreciated. Please give me a reply at your earliest .

A．interruption

B．instruction

C．consideration

D．convenience

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-- ______ made Daisy wild with joy?
-- Her success in the A-level exam this year.

A．How was it that

B．When was it that

C．Why was it that

D．What was it that

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试卷分析