皮皮学，免费搜题
登录
搜题
【单选题】
基因连锁互换定律的细胞学基础是()A.
同源染色体分离
B.
非同源染色体自由组合
C.
染色单体分离
D.
非姊妹染色单体交换
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】A．To give an example of natural shapes. B．To describe early sculpture. C．To illustrate their use as tools. D．To demonstrate their role as decorative objects.
【单选题】用0.1 mol/L HCl滴定0.1 mol/L NH3水(pKb = 4.7)的pH突跃范围为6.3~4.3, 若用0.1 mol/L HCl滴定0.1 mol/L pKb = 2.7的某碱, pH突跃范围为
A.
6.3~2.3
B.
8.3~2.3
C.
8.3~4.3
D.
4.3~6.3
【单选题】用0.1 mol/L HCl滴定0.1 mol/L NH3水(pKb= 4.7)的pH突跃范围为6.3~4.3,若用0.1 mol/L HCl滴定0.1 mol/L pKb= 2.7的某碱, pH突跃范围为( )
A.
4.3~6.3
B.
6.3~2.3
C.
8.3~2.3
D.
8.3~4.3
【单选题】用0.1 mol/L HCl滴定0.1 mol/L氨水(pKb = 4.7)的pH突跃范围为6.3~4.3， 若用0.1 mol/L HCl滴定0.1 mol/L pKb = 2.7的某碱，pH突跃范围为( )
A.
6.3~2.3
B.
8.3~2.3
C.
8.3~4.3
D.
4.3~6.3
【单选题】Why does the professor mention bones and shells?
A.
To give an example of natural shapes.
B.
To describe early sculpture.
C.
To illustrate their use as tools.
D.
To demonstrate their role as decorative objects.
【单选题】用0.1mol/L HCl滴定0.1mol/L NH 3 （pK b =4.7）的突跃范围为6.3~4.3，若用0.1mol/L HCl滴定0.1mol/L pK b =4.7的某碱，pH的突跃范围为（）
A.
6.3~2.3
B.
8.3~2.3
C.
8.3~4.3
D.
6.3~4.3
相关题目：
参考解析：
知识点：
题目纠错 0
发布
