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【单选题】
销售净利润率计算公式为（）A.
销售净利润率=（利润÷销售收人）x100％
B.
销售净利润率=（销售收入÷利润）X100％
C.
销售净利润率=（净利润÷销售收入）X100％
D.
销售净利润率=（销售收入÷净利润）X100％
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【简答题】微积分是高等数学的重要组成,其理论是由牛顿和()完成的。
【单选题】During the 1990s boom Dell Computer's customers got hooked on speed. Most were willing to pay a premium to have their computers shipped by overnight air express. But today, the equation has flipped. C...
A.
customers used to attach importance to fancy packaging.
B.
there is a radical change in customers' considerations.
C.
it is high time that delivery service would better quality.
D.
customers now tend to choose speed over cost savings.
【简答题】One of the most important social developments that helped to make possible a shift in thinking about the role of public education was the effect of the baby boom of the 1950s and 1960s on the schools....
【单选题】During the 1990s boom Dell Computer's customers got hooked on speed. Most were willing to pay a premium to have their computers shipped by overnight air express. But today, the equation has flipped. C...
A.
customers used to attach importance to fancy packaging.
B.
there is a radical change in customers' considerations.
C.
it is high time that delivery service would better quality.
D.
customers now tend to choose speed over cost savings.
【简答题】The decade following World War I was a period of boom in the U.S. due to post-war optimism and a drastic change in the lifestyle of Americans.
【简答题】在碱土金属中,能被浓硝酸钝化的金属单质是 ;熔点最高的氧化物是 ;具有两性的氢氧化物是 ;碱性最强的氢氧化物是 ;溶解度最大的碳酸盐是 。
【简答题】微积分是高等数学的重要组成,其理论是由()和莱布尼兹完成的。
【单选题】According to the passage, when did Canada's baby boom begin?
A.
In the decade after 1911.
B.
After 1945.
C.
During the depression of the 1930s.
D.
In 1966.
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