题目

在细胞生物学领域，设备的分辨率越高，揭示的秘密就越多。当前，科学家打算将新工具与技术相结合，以前所未有的细节和3D形式展示细胞内部结构。计划将这些方法与冷冻电子断层成像术、痕量分子标记技术及其他显微术结合起来，了解亚细胞。这说明（ ）①实践是认识的来源，是检验认识的真理性的唯一标准②实践的发展提高了人类的认识能力，推动认识不断深化③实践发展为我们提供日益完备的工具，延伸了人类的认识器官④科学实验活动要完形填空It’s April the 23rd today. It’s the World Book Day. Look, in the city ________, there are many people. Some of them are old, some are________.What are they doing there? Some are ________ and reading different kinds of books at the table. Some are standing and looking for their ________ books. What about people over there? Oh, they are reading on the ________ . It’s a good way to read, too.Most of the people are from different ________ clubs. All of them love reading. They think reading can ________ us a lot. There are many different kinds of books, magazines and newspapers. We can ________ a lot from them. We can get help from them. Good books are________ our best friends. Reading books can open our eyes. It can make our life ________ . It can change(改变)our life.1.A. park B. home C. street D. library2.A. bad B. new C. young D. good3.A. sitting B. seeing C. teaching D. buying4.A. favorite B. new C. story D. old5.A. desks B. computers C. beds D. chairs6.A. dancing B. reading C. climbing D. swimming7.A. make B. help C. pay D. spend8.A. learn B. talk C. forget D. make9.A. from B. like C. as D. in10.A. boring B. poor C. cheap D. beautiful