What is the difference between (1) and (2)?What is the difference_英语解答

What is the difference between (1) and (2)?
What is the difference between "to " and "do" in this sentence?
1)My job duty is teaching customer how to use the Computer System.
2)My job duty is teaching customer how do use the Computer System.

人气：119 ℃　时间：2020-03-27 01:16:55

解答

（1）第一句是我的工作职责是教客户如何使用计算机系统
（2）第二句是我的工作职责是教客户计算机系统是如何运作的
两个句子中表语从句的主语是不一样的.第一句是客户,第二句是计算机系统