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【单选题】
Trying to get Americans to eat a healthy diet is a frustrating business. Even the best-designed public-health campaigns cannot seem to compete with the tempting flavors of the snack-food and fast-food industries and their fat-and sugar-laden products. The results are apparent on a walk down any American street—more than 60% of Americans are overweight, and a full quarter of them are overweight to the point of obesity. Now, health advocates say, an ill-conceived redesign-has taken one of the more successful public-health campaigns—the Food Guide Pyramid—and rendered it confusing to the point of uselessness. Some of these critics worry that America's Department of Agriculture caved to pressure from parts of the food industry anxious to protect theft products. The Food Guide Pyramid was a graphic which emphasizes that a healthy diet is built on a base of gains, vegetables and fruits, followed by ever-decreasing amounts of dairy products, meat, sweets and oils. The agriculture department launched the pyramid in 1992 to replace its previous program, which was centered on the idea of four basic food groups. The 'Basic Four' campaign showed a plate divided into quarters, and seemed to imply that meat and dairy products should make up haft of a healthy diet, with grains, fruits and vegetables making up the other half. It was replaced only over the strenuous objections of the meat and dairy industries. The old pyramid was undoubtedly imperfect. It failed to distinguish between a doughnut and a whole-grain roll, or a hamburger and a skinless chicken breast, and it did not make clear exactly how much of each foodstuff to eat. It did, however, manage to convey the basic idea of proper proportions in an easily understandable way. The new pyramid, called 'My Pyramid', abandons the effort to provide this information. Instead, it has been simplified to a mere logo. The food groups are replaced with unlabelled, multi-colored vertical stripes which, in some versions, rise out of a cartoon jumble of foods that look like the aftermath of a riot at a grocery store. Anyone who wants to see how this translates into a healthy diet is invited to go to a website, put in their age, sex and activity level, and get a custom-designed pyramid, complete with healthy food choices and suggested portion sizes. This is free for those who are motivated, but might prove too much effort for those who most need such information. Admittedly, the designers of the new pyramid had a tough job to do. They were supposed to condense the advice in the 84-page United States' Dietary Guidelines into a simple, meaningful graphic suitable for printing on the back of a cereal box. And they had to do this in the face of pressure from dozens of special interest groups—from the country's Potato Board, which thought potatoes would look nice in the picture, to the Almond Board of California, which felt the same way about almonds. Even the National Watermelon Promotion Board and the California Avocado Commission were eager to see their products recognized. Nevertheless, many health advocates believe the new graphic is a missed opportunity. Although officials insist industry pressure had nothing to do with the eventual design, some critics suspect that political influence was at work. On the other hand, it is not clear how much good even the best graphic could do. Surveys found that 80% of Americans recognized the old Food Guide Pyramid—a big success in the world of public-health campaigns. Yet only 16% followed its advice. Trying to get Americans to eat a healthy diet is a frustrating business can be easily proved by the fact that
A.
public-health campaigns cannot compete with tempting flavors.
B.
snack-food and fast-food industries are flourishing in the US.
C.
most food in America are profoundly rich in fat and sugar.
D.
fat people account for a large proportion of American population.
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【单选题】下列关于有限责任公司监事会或监事的说法中,错误的是()
A.
行使职权所必需的费用由公司承担
B.
监事会决议应当由监事1/3以上通过
C.
监事会每年度至少召开一次会议
D.
监事可以列席董事会会议
【多选题】下列关于有限责任公司监事会或监事的说法,正确的是(    )。
A.
行使职权所必需的费用由公司承担
B.
监事会决议应当由出席会议监事的半数以上通过
C.
监事会每年度至少召开一次会议
D.
监事可以列席董事会会议
【单选题】下列关于有限责任公司监事会或监事的说法,错误的是:
A.
行使职权所必需的费用由公司承担
B.
监事会决议应当由出席会议监事的半数以上通过
C.
监事会每年度至少召开一次会议
D.
监事可以列席董事会会议
【单选题】反计算是()的尺寸及公差。
A.
已知开环求第九封闭环
B.
已知封闭环求其余组成环
C.
已知组成环求最大封闭环
D.
已知组成环求第十封闭环
【简答题】有机化合物中电子跃迁主要有哪几种类型 ? 这些类型的跃迁各处于什么波长范围?
【单选题】下列关于有限责任公司监事会的说法中,不正确的有( )。 Ⅰ.有限责任公司设监事会的,其成员不得少于5人 Ⅱ.股东人数较少或者规模较小的,可以不设监事会 Ⅲ.监事会应当包括不高于总人数的1/3的公司职工代表 Ⅳ.董事、高级管理人员可以兼任监事
A.
Ⅰ、Ⅱ
B.
Ⅰ、Ⅱ、Ⅳ
C.
Ⅰ、Ⅲ
D.
Ⅲ、Ⅳ
【单选题】反计算是()的尺寸及公差。
A.
已知开环求第八封闭环
B.
已知组成环求第九封闭环
C.
已知封闭环求其余组成环
D.
已知开环求第六封闭环
【多选题】关于复合求积公式的说法,正确的有:
A.
复合求积方法实质上是分段低阶求积
B.
复合梯形公式的误差是步长的平方阶
C.
复合辛普森公式的误差是步长的四次方阶
D.
复合梯形公式和复合辛普森公式都是稳定的
【单选题】反计算是( )的尺寸及公差。
A.
已知封闭环求第二组成环
B.
已知组成环求第一组成环
C.
已知封闭环求其余组成环
D.
已知组成环求最小封闭环
【简答题】什么是复合积分公式?
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