问题 选择题

下列划线的成语使用有误的一项是(   )

A.这可真是骇人听闻了。难道我是一个愚蠢的人吗?难道我不够资格当皇帝吗?

B.大家要到中山公园去玩,我本来不想去,但也只得人云亦云地跟着。

C.瞧,她眉开眼笑的,一定是考了高分了。

D.妈妈在超市干了一整天,下班回来时已经疲惫不堪了。

答案

答案:B

此题考查学生正确运用成语、语法等语文知识进行表达和修改的能力。B句中“人云亦云”指指没有主见,只会随声附和,含贬义,不合语境。

单项选择题
单项选择题

The United States government publishes guidelines for appropriate nutrient intakes. These are known as the Recommended Dietary Allowances (RDAs) and are updated regularly based on new research in nutrition. RDAs are suggested amounts of calories, protein, and some minerals and vitamins for an adequate diet. For other dietary substances, specific goals must await further research. However, for the U.S. population as a whole, increasing starch and fiber in one’’s diet and reducing calories (primarily from fats, sugar, and alcohol) is sensible. These suggestions are especially appropriate for people who have other factors for chronic diseases due to family history of obesity, premature heart disease, diabetes, high blood pressure, and high blood cholesterol, or for those who use tobacco.Snacks can furnish about one-fourth of the calorie requirements among teenagers. Those snacks should also provide much of the day’’s allowances for protein, minerals, and vitamins. Sandwiches, fruit, and milk make good snacks for active teenagers. Food from the food pyramid may be part of any meal. A grilled cheese sandwich or a bowl of whole-grain cereal is just as nutritious in the morning as it is at noon. In addition, a good breakfast consists of any foods that supply about one-fourth of the necessary nutrients for the day.

One implication in this passage is that________.

A.all RDAs have been established

B.not all RDAs have been established yet

C.it’s not important to know RDAs

D.RDAs are necessary only for sick people