某公司经营杠杆系数为1.5，财务杠杆系数为2，该公司目前每股收益为1元，若使营业收入增加10%，则下列说法不正确的是()。
A、息税前利润增长15%
B、每股收益增长30%
C、息税前利润增长6.67%
D、每股收益增长到1.3元
参考答案：C
解析：经营杠杆系数=息税前利润增长率/营业收入增长率，由此可知，选项A的说法正确，选项C的说法不正确;总杠杆系数=财务杠杆系数×经营杠杆系数=每股收益增长率/营业收入增长率=3，由此可知，每股收益增长率=3×10%=30%，选项B、D的说法正确
Talk about a real-life hero! Ten-year-old Larry Champagne from St. Louis，Missouri, hit the brake (刹车) on a runaway school bus. He saved himself and 20 other kids on board from disaster. It all happened in one terrible accident. On the way to school, the bus driver, Ernestine Blackman, suddenly fell ill. Seeing the car was running away, the other kids started to scream, but Larry ran to the front and stopped the bus. “At first I thought, ‘We’re going to die,’” says Larry, “but after I pressed the brake, I felt safe.” Larry’s speedy reaction made news all over the country. He appeared on TV shows as a hero. The bus company gave Larry a big gift. His school hung a medal of honor around his neck. “My grandmother always tells me to do what’s right,” says Larry. He thanked his brother, Jerrick, 9, who “helped me get the bus driver up” during the emergency（紧急情况）. How did he know how to stop the bus? Larry is something of a mechanic（机械师）. He helps his grandfather work on his old truck. “He gets his hands dirty,” says his grandfather. One thing is for certain: Larry knows where to find the brakes. 小题1:What did Larry do to save the runaway bus?
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