根据乐器分类法,我们得知气鸣乐器是指借助空气振动产生声音的乐器。乐器是指由弦振动...

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【判断题】

根据乐器分类法,我们得知气鸣乐器是指借助空气振动产生声音的乐器。乐器是指由弦振动发音的乐器。

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【判断题】Gross profit margin is the profit as a percentage of cost.Is this statement correct?

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【判断题】Gross profit margin is the profit as a percentage of cost.

正确

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【单选题】A business operates on a gross profit margin of 33 1 / 3 %. Gross profit on a sale was $800, and expenses were $680. What is the net profit margin? A 3.75% B 5% C 11.25% D 22.67%

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【单选题】A business operates on a gross profit margin of20%. Gross profit on a sale was $2,000, and expenses were $500. What is the net profit margin?

16 %

12.5 %

1 2 %

15 %

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【简答题】因发包人原因未能及时办理完毕前述许可、批准或备案,由发包人承担由此增加的费用和(或) 延误的____,并支付承包人合理的____。

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【判断题】试验压力指在压力试验时,容器顶部的压力。( )

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【判断题】Gross profit margin is the profit as a percentage of cost.

正确

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【简答题】生活中哪些设备需要用到交流电动机来驱动?

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【判断题】含结合水分为主的物质，为了加快干燥时间，可采取增加空气流速的办法。

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【单选题】A business operates on a gross profit margin of 331/3%. Gross profit on a sale was $800, and expenses were $680. What is the net profit margin? .

3.75%

. 5%

. 11.25%

. 22.67%

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