当前位置:首页 > 问题分类 > 学历类考试 > 初中 > 问题详情

问题:

(3)和课本实验比较,小斌改进后的装置的优点是(写出两点)①_________;②____________。

(3)和课本实验比较,小斌改进后的装置的优点是(写出两点)①_________;②____________。


  参考答案

正确答案:
现象明显、快速出现实验现象、实验药品用量少、环保无污染 (答出其中的任意两点均给分)

相关题目:

5. The number of the students in our class_______45.
A.are
B.is
C.to be
D.go to
4. The meeting ______ begin ______ the last man came.
A. didn’t ;until
B. not; until
C. doesn’t; until
D. will; until
3. He said he __________next month.
A. will leave
B.leaves
C.left
D. would leave