四部门经济与三部门经济相比，函数效应（） A.变大 B.变小 C.不变 D.不一定 发布时间：2018-11-25 06:23 │ 来源：www.tikuol.com 题型：单项选择题 问题： 四部门经济与三部门经济相比，函数效应（）A.变大B.变小C.不变D.不一定
题型：单项选择题 完形填空。 Like the body, the memory improves with use. 1 the body, the memory can improve with age. For many years, doctors have been studying the way the brain 2 . We all know that the brain has two sides, the left and the right. The right side controls the senses and the left side of our brain controls our logical 3 . We call the left side the "education" side of the brain, and generally, in western countries, people have 4 this side of the brain more than the right side. Scientists believe that our brain will work more efficiently if both the right side and the left side are developed equally. In many schools today, teachers try to educate children in such a way that both sides of the brain are 5 . This can be done with logical subjects 6 math and science as well as with creative subjects such as art. Albert Einstein, the great scientist, did some of his best work when he was very old. He was 7 not only in his work, but also in creative and imaginative activities. It was because of his many different interests in life that he was able to 8 the full development of both sides of his brain. ( )1. A. Like ( )2. A. works ( )3. A. acting ( )4. A. studied ( )5. A. worked ( )6. A. including ( )7. A. interested ( )8. A. follow B. Likely B. thinks B. thinking B. improved B. used B. besides B. enjoy B. reach C. As C. improves C. choosing C. developed C. taught C. except C. enucated C. watch D. Unlike D. grows D. testing D. liked D. thought D. as D. excited D. stop 查看答案
题型：单项选择题 李振声院士获得了2006年度国家最高科技奖，其主要成就是实现了小麦同偃麦草的远缘杂交，培育成了多个小偃麦品种，请回答下列有关小麦遗传育种的问题：除小偃麦外，我国也实现了普通小麦与黑麦的远缘杂交。①普通小麦（六倍体）配子中的染色体数为21，配子形成时处于减数第二次分裂后期的每个细胞中的染色体数为（）。②黑麦配子中的染色体数和染色体组数分别为7和1，则黑麦属于（）倍体植物。③普通小麦与黑麦杂交，F1代体细胞中的染色体组数为（），由此F1代可进一步育成小黑麦。 查看答案