28[填空题] 常用的有机溶剂大致可分为（）、（）、（）、（）。 - 查题网

>> 河南成教 / 煤化学

河南成教 / 煤化学

28[填空题]
常用的有机溶剂大致可分为（）、（）、（）、（）。

积分

煤化学

参考答案：

点击查看答案

佳题速递：

题型描述: 阅读理解Jacks is the name of a game that is quite popular with children. To play jacks, you will need a small rubber ball and ten small metal objects called jacks.The rules for this game are not very difficult. To begin, you put the ten jacks on the floor or ground in front of you. Throw the ball up (but not too high), pick up one jack, and then catch the ball. Keep the jack in your hand and then continue to pick up the other jacks one at a time. You lose your turn if you do not catch the ball, you do not pick up a jack, or you drｏp any jacks from your hand.When you finish all ten jacks, you now try to do the same thing again but with two jacks at one time. This is more difficult of course. You lose your turn if you make any of the other three mistakes or if you do not pick up exactly two jacks each time.1、 To play the game, you will need a rubber band and ten small iron objects. A. F B. T 2、 The rules for playing jacks are quite difficult. A. Y B. F 3、 You have to pick up two jacks each time after you finish the first ten jacks successfully. A. F B. T 4、 Many children like the game very much. A. F B. T 5、 The rules for the game will become more practical after you pick up the first ten jacks. A. F B. T统考英语B

剪力墙墙端无柱时墙身水平钢筋端部构造，下面描述正确的是（）钢筋工程量计算

8[名词解释题] 允许吸上真空高度建筑设备

在Word中用键盘进行光标定位时，最快的方法移到行首（） A. 反复按左方向光标键 B. 按[end] C. 按［Home］ D. 按[ctrl end] 计算机统考

试分析蜗杆传动传动效率的影响因素及影响情况。机械设计

[单选题] 在厂区限定车速的情况下，路口安全视距为() A.10M B.15M C.20M D.30M景观设计概论