工作暂停或结束后,应将氧气和乙炔瓶关闭,并将压力表的指针调至零位。同时还要将焊炬和胶管盘好,挂在靠墙的架子上或拆下橡皮管将焊炬存放在工具箱内。()
查看答案
What stopped the American economy from collapsing in 2007?______.
A. Self-regulatory repair mechanisms of the free market
B. Cooperation between the government and businesses
C. Abandonment of big government by the public
D. Effective measures adopted by the government
Write an essay based on the following table. In your essay, you should (1)interpret the table, and (2)give your comments. You should write about 150 words on the ANSWER SHEET 2.(15 points)
What has contributed to the rapid economic growth in China and India?______.
A. Copying western-style. economic behavior
B. Heavy reliance on the hand of government
C. Timely reform. of government at all levels
D. Free market plus government intervention
下列说法中不正确的是()。
A 现金流量中不考虑沉没成本
B 净现金流量就是利润
C 现金流量不能忽视机会成本
D 相关现金流量是有无对比的增量的现金流量