下列现象中，不是满水事故现象的是( )。
A．水位表内看不到水位，但表内发暗
B．水位报警器发出高水位警报
C．给水流量不正常地大于蒸汽流量
D．过热蒸汽温度升高
参考答案：D
解析：锅炉满水时，水位表内也往往看不到水位，但表内发暗，这是满水与缺水的重要区别。满水发生后，高水位报警器动作并发出警报，过热蒸汽温度降低，给水流量不正常地大于蒸汽流量。严重满水时，锅水可进入蒸汽管道和过热器，造成水击及过热器结垢。
Passage Three
| Successful businesses tend to continue implementing the ideas that made them successful. But in a rapidly changing world, ideas often become obsolete overnight. What worked in the past won’t necessarily work in the future. In order to thrive in the future, you must constantly create new ideas for every aspect of your business. In fact, you must continually generate new ideas just to keep your head above water. Businesses that aren’t creative about their future may not survive. Although Bill Gates is the richest, most successful man on the planet, he did not anticipate the Internet. Now he’s scrambling to catch up. If Bill Gates can miss a major aspect of his industry, it can happen to you in your industry. Your business needs to continually innovate and create its future. Gates is now constantly worried about the future of Microsoft. Here’s what he said in a recent interview in U.S. News World Report: "Will we be replaced tomorrow No. In a very short time frame, Microsoft is an incredibly p company. But when you look to the two-to-three-year time frame, I don’t think anyone can say with a straight face that any technology company has a guaranteed position. Not Intel, not Microsoft, not Compaq, not Dell, take any of your favorites. And that’s totally honest." You may remember that in 1985 the Cabbage Patch Kids dolls were the best-selling toy on the market. But after Coleco Industries introduced their sensational line of dolls they became complacent and didn’t create any new toys worth mentioning. As a result, Coleco went bankrupt in 1988. The most successful businesses survive in the long term because they constantly reassess their situations and reinvest themselves accordingly. The 3M Company has a 15% rule: employees are encouraged to spend 15% of their time developing new ideas on any project they desire; it’s no surprise, then, that 3M has been around since 1902. Most businesses are not willing to tear apart last year’s model of success and build a new one. Here’s a familiar analogy to explain why they are lulled into complacency: imagine that your business is like a pot of lobsters; to cook lobsters, you put them into a pot of warm water and gradually turn up the heat; the lobsters don’t realize they’re being cooked because the process is so gradual. As a result, they become complacent and die without a struggle. However, if you throw a lobster into the pot when the water is boiling, it will desperately try to escape. This lobster is not lulled by a slowly changing environment. It realizes instantly that it’s in a bad environment and takes immediate action to change its status. |
Coleco Industries’ case suggests that ______.
A．the Cabbage Patch Kids dolls were the best-selling toy on the market
B．the Cabbage Patch Kids dolls are sensational line of dolls
C．complacency and lack of creation will ultimately ruin a business
D．the most successful businesses survive in the long term