预试某中药中是否含有黄酮类成分,最常用的反应是()
A.盐酸一镁粉反应
B.四氢硼钠反应
C.氨性氯化锶反应
D.三氯化铝反应
E.锆一枸橼酸反应
参考答案:A
根据语境及首字母提示完成单词。
1. Uncle Wang is sixty, but he looks very y____________.
2. They're sleeping, please walk into the room q____________.
3. I feel t____________. I want to have a rest.
4. She does something wrong, her mother is very a____________ with her.
5. Sarah does her homework so c____________. All the answers are right.
6. Someone like flowers because they are b____________.
7. Do exercise every day will make you s____________.
8. I am t____________. I'd like a cup of tea.
9. The meat tastes d____________. I like it.
10. Jim spoke p____________ to his teacher.
功能固着,是指个体在解决问题时往往只看到某种事物的通常功能,而看不到它其他方面的用途。这是人们长期以来形成的对某些事物的功能或用途的固定看法。 根据上述定义,下列属于功能固着的是( )。
A.军事迷小璐拿子弹壳做成了各式各样的武器模型
B.女青年小陈遭遇飞车抢劫,路过此地的一名骑自行车男子见此将自行车砸向飞驰而来的摩托车,两名歹徒应声落地
C.地球生态协会的小钟将废弃的光盘拿线穿起来做成了门帘
D.小杜淋雨后只想到拿电吹风吹干了自己的头发,心想衣服只能雨过天晴后晒干了