| When Thomas Keller, one of America’s
foremost chefs, announced that on Sept. 1 he would abolish the practice of
tipping at Per Se, his luxury restaurant in New York City, and replace it with a
European--style service charge, I knew three groups would be opposed: customers,
servers and restaurant owners. These three groups are all committed to
tipping—as they quickly made clear on Web sites. To oppose tipping, it seems, is
to be anticapitalist, and maybe even a little French. But Mr. Keller is right to move away from tipping—and it’s worth exploring why just about everyone else in the restaurant world is wrong to stick with the practice. Customers believe in tipping because they think it makes economic sense. "Waiters know that they won’t get paid if they don’t do a good job" is how most advocates of the system would put it. To be sure, this is a te A. is tipping-free B. charges little tip C. is the author’s initiative D. is offered at Per Se [单选题]在作业过程中，绝缘斗臂车的发动机（ ）熄火。
A.不准 B.可以 C.特殊情况下可以 D.允许 [简答题]列车应如何编组？
[单选题]在1970年到1980年之间，世界工业的能源消耗量在达到顶峰后下降，1980年虽然工业总产出量有显著提高，但工业的能源总耗用量却低于1970年的水平。这说明，工业部门一定采取了高效节能措施。
最能削弱上述结论的是（ ）。
A.1970年前，许多工业能源的使用者很少注意节约能源 B.20世纪70年代一大批能源密集型工业部门的产量急剧下降 C.工业总量的增长1970年到1980年间低于1960至1970年间的增长 D.20世纪70年代，许多行业从使用高价石油转向使用低价的替代物 [单项选择]在各类调压器中，输出电压波形正弦性畸变率最小的是（）。
A. 移卷调压器 B. 感应调压器 C. 自耦调压器 [单选题]给水泵启动前，首先启动(____)。
A.主油泵 B.辅助油泵 C.前置泵 D.凝结水泵 [单项选择]在美国，最发达的证券市场应是（）
A. 发行市场 B. 二级市场 C. 三级市场 D. 四级市场 我来回答: 提交
|
