Excel表格如何设置标题跨列居中？Excel表格设置标题跨列居中怎么操作
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To prevent headache, watering eyes and blindness caused by the glare from snow, dark glasses are _____.
A. indispensable
B. useful
C. ineffective
D. available
？
Snowblindness may be avoided by _____.
A. concentrating on the solid white terrain
B. searching for something to look at in snow-covered terrain
C. providing the eyes with something to focus on
D. covering the eyeballs with fluid
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