问题 问答题 简答题

井串车提升的选择计算包括哪些内容?

答案

参考答案:

斜井串车提升的选择计算包括以下内容:

(1)一次提升量和串车矿车数的确定;

(2)提升钢丝绳的选择计算;

(3)提升机的选择计算;

(4)天轮的选择计算;

(5)电动机的选择计算。

阅读理解

阅读理解。

根据上面的广告内容,回答下列问题。

1. What number should Jim call if he wants to learn software?

                                                                                                                                                 

2. Where can you have Business English courses? 

                                                                                                                                                 

3. What is a website's name on one of the ads?

                                                                                                                                                 

4. How much do two persons pay for a 2-night stay in the Belvedere Hotel on Dec. 31 and Jan.1?

                                                                                                                                                 

5. Mr Black will take his 6-year-old twin sons to see the film The Jungle Book. How much will they 

    pay for the tickets? 

                                                                                                                                                 

判断题