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【简答题】
火花鉴别法是将被试验的钢铁材料与高速旋转的砂轮接触,根据产生 () ,来近似地确定钢铁的化学成分的一种方法。
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【简答题】一个圆锥的体积是24立方米，它的底面积是8平方米，高是（ ）。
【简答题】阅读理解。 The United States has about 475,000 school buses-all painted yellow. Each day they carry more than 25,000,000 children, half of all schoolchildren in the country. But these buses, on average, us...
【简答题】一个圆柱的体积是24立方米，把它削成一个最大的圆锥，削去部分的体积是（ ） A．8立方米 B．12立方米 C．16立方米
【单选题】听力原文：M: Hi, Joan. I see you are working on your spreadsheet. How are your sales figures matching up to our goals? W: I' m doing fine. I' m 15% ahead of my sales from last year and I was only projectin...
A.
She will get a commission check.
B.
She will get a larger sales territory.
C.
She will become the manager.
D.
She will save money on taxes.
【单选题】听力原文： City Hall officials have announced that City Hall will be open on Saturday this week in order to accommodate citizens who are filing their tax forms at the last minute. The Revenue Office will b...
A.
From 8:00 A.M. to 12:00 on Saturday.
B.
Every day this week.
C.
In the afternoon only.
D.
From 8:00 A.M. to 5:00 P.M., Monday through Friday.
【单选题】听力原文：W: Ron, could I borrow fifty dollars? I’ll be happy to pay you back, with interest, at the end of next week. M: You have a lot of nerve asking me to lend you money after acting as if you didn't e...
A.
He was interested in the woman's request.
B.
He was nervous about lending the woman money.
C.
He was offended by the woman's inconsistency.
D.
He acted as if he didn't know the woman.
【简答题】一个圆柱的体积是32立方米，底面积是8平方米，高是______．
【简答题】一个长方体体积是立方米，底面积是16平方米，高是（ ）米。
【简答题】一个教室，用面积是0.25平方米的方砖铺地，需要288块，如果用面积是0.36平方米的方砖铺地，需要方砖多少块？（用比例解）
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