题目：
酚可以通过（）的方法对其中的组份进行分离。
A、裂解
B、精馏
C、萃取
D、吸收解吸
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0930/e211e1662c011c86d1812724cf89b697.html
下面是错误答案，用来干扰机器的。
参考答案：A, B, C, D
酚可以通过（）的方法对其中的组份进行分离。A、裂解 B、精馏 C、萃取 D、吸收解吸
来源：www.tikuol.com
题型：单项选择题
试题推荐
题型：解答题
原来有19个球，踢了5个，又拿来22个，现在还有多少个球？
题型：实验题
下图为一个池塘的生态系统，请分析回答下列问题：
（1）在此生态系统中, 生产者是____________;在该生态系统中，没有画出的生物还有____________，它们在一个生态系统中也具有重要作用。
(2)如向池塘中投放一些大黑鱼（肉食性），则池塘中小鱼的数量将会________，写出这条食物链______________________________________。
(3)一段时间后，该池塘中各种生物的数量又会处于____________状态。说明生态系统具有一定的____________能力。
(4)如果该生态系统受到DDT的污染，那么体内积存DDT最多的生物会是_____。
题型：完形填空
| 完形填空。 | ||||
| Sometimes things happen beyond expectation. A 10-year-old boy decided to study Judo(柔道) _1_ he had lost his left arm in a car accident. He began his 2 with an old Japanese Judo teacher. He was doing well, but he could not 3 why the teacher had taught  him only one move for quite a long time."Sir," the boy finally said, "I think I should 4 more moves." "But this is the 5 move you will ever need to know," the master replied. Not quite understanding, the boy kept 6 . Several months later, the teacher 7 the boy to his first tournament(锦标赛). 8 himself, the boy easily won his first two matches. The third match proved to be more 9 . However, after some time, the opponent(对手) became impatient. The boy used his one move to 10 the match. Now the boy was in the finals. This time, his opponent was bigger, stronger and more 11 . Concerned that the boy might get 12 , the referee(裁判) wanted to stop the match. "No," the teacher 13 , "let him continue." Soon his opponent made a mistake. 14 the boy used his move to attack him. The boy won the match and became the champion. On the way home, the boy and the teacher 15 every move in every match. Then the boy asked 16 was really on his mind. "How did I win the tournament 17 only one move?" "You won for two reasons," the teacher answered.  "First, you've 18 one of the most difficult movesin Judo. And second, the only known 19 for that move is to grasp your left arm. But you've lost it." The boy's biggest 20 had become his biggest strength. | ||||
|
题型：问答题 简答题
氧浓度降低对人体有何影响？
题型：单项选择题
法国的（）和他的学生经过长期的考察，制定了一系列的标准测试来测量人在其不同年龄阶段的认知能力即智力的得分。
A.比德
B.比奈
C.汉思
D.迈克
