皮皮学,免费搜题
登录
搜题
【简答题】
A: I failed again in the final test. B: I’m sorry to __(1)___ ! But if you study harder, you will pass the exam next time. A: I hope so. B: Nothing is difficult if we __(2)___ into it . 2. A: What are the good qualities for a successful businessman like Ma Yun? B: In my view, a good businessman should believe in himself/herself and never give up. A: You are right. It is important ____(3)_____. The key to success is never _____(4)_____ . 3. A: I’m glad that the Chinese football team has finally won the game. B: Yes, but it is hard .When facing difficulties, they still tried_____(5)_____ hard. A: I can’t agree with you more. They are very _____(6)_____ . 4. A: The Great Wall is so hard to clime. I’m very tired now. B: Come on, don’t give up ___(7)___. A: No, I won’t . One who fails to reach the Great Wall is not a hero. B: Great! The person who never gives up has more chances ___(8)___ . a. giving up b. easily c. hear that d. to play e. put our hearts f. to succeed g. to be persistent h. determined
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】自2003年起,教育部分批批准了北京大学、清华大学等76所高校开展自主选拔录取改革试点工作,给试点高校提供自主选择自己所需人才的空间和舞台。下面是部分高校2010年自主招生面试试题,这些试题体现了高校选拔人才的价值取向。 *何为软实力,如何构建国家软实力? *《阿凡达》很火,欧美大片、日本动漫也很受欢迎。如何在这种环境下发展中国文化? *谈谈雷锋精神的内涵理解,现在社会该不该提倡雷锋精神? *给你...
【单选题】听力原文: In a time of low academic achievement by children in the United States, many Americans are turning to Japan, a country of high academic achievement and economic success, for possible answers. Ho...
A.
Because Japanese preschools cost less than those in America.
B.
Because Japanese children have high academic achievement.
C.
Because Japanese preschools pay much attention to the overall development of children.
D.
Because there are only a few preschools in America.
【单选题】首当其冲解决人类面临的五大经济危机的一门学科是
A.
数学
B.
生物
C.
物理
D.
化学
【单选题】为克服同步调制方法的缺点,通常采用分段同步调制的方法,在输出频率高的频段一般采用( )的载波比,在输出频率较低的频段采用( )的载波比。 A.较高、较低 B.较低、较高 C.较高、不变 D. 较低、不变
A.
选择1
B.
选择2
C.
选择3
D.
选择4
【单选题】利用溶剂提取法提取亲水性生物碱常选用的溶剂是
A.
B.
氯仿
C.
正丁醇
D.
石油醚
E.
乙酸乙酯
【单选题】氯仿提取生物碱是利用()性质
A.
生物碱盐易溶于水
B.
生物碱有挥发性
C.
生物碱和其盐均溶于醇
D.
生物碱碱性强
E.
游离生物碱亲脂性强
【单选题】为克服同步调制方法的缺点,通常采用分段同步调制的方法,在输出频率高的频段一般采用( )的载波比
A.
较高
B.
较低
C.
不变
D.
都不对
【简答题】固体酸的性质包括哪几方面?
【单选题】用简单萃取技术分离生物碱时,在酸水提取液中加入氨水/石灰水碱化的目的是
A.
改变溶液PH值
B.
使生物碱盐转化成游离生物碱便于用氯仿萃取
C.
增加溶解性
D.
利于乳化
【简答题】固体酸的性质包括哪几方面?用什么方法进行测定?
相关题目: