如何降低客户投诉()
A.及时履约
B.不能履约要及时改约
C.做好首次回应
D.及时响应催装/修
E.保证装维质量
参考答案:A, B, C, D, E
在一定条件下,RO3n-和I-可发生如下反应:RO3n-+6I-+6H+ = R-+ 3I2 +3H2O,则RO3n-中R元素的化合价为[ ]
A.+1
B.+3
C.+5
D.+7
根据实际情况回答问题。
1. How do you go to school?
2. How can you go to Beijing?
3. Where is the hospital in your city?
4. Is your home far from your school?
5. What do you do when you meet a red light?