单项选择题

单选题数据统计中条件求和函数的格式为()。
A、SUM (number1,number2,……)
B、SUMIF(range,criteria, sum_range)
C、AVERAGE(number1,number2,……)
D、COUNT(value1,value2......)

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在相同的时间内，一束波长为l的单色光在空气和在玻璃中

A．传播的路程相等，走过的光程相等
B．传播的路程不相等，走过的光程相等
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D．传播的路程不相等，走过的光程不相等

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Choose the correct sentence(s) from the set of sentences below.
Women who believe abortions should remain legal recently held a rally in Washington DC.
A、Women who believe abortions should remain legal recently held a rally in Washington DC. (No commas)
B、Women, who believe abortions should remain legal recently held a rally in Washington DC.
C、Women who believe abortions should remain legal, recently held a rally in Washington DC.
D、Women, who believe abortions should remain legal, recently held a rally in Washington DC.