问题
多项选择题
下列《煤炭工业矿井设计规范》规定的内容，叙述正确的是()。
A.不在工业场地范围内的立井，井口围护带宽度应为20m
B.斜井井口的围护带宽度应为10m
C.罐笼井筒与井底车场连接处的两侧巷道应设有单边或双边人行道
D.井下水仓应由两条相连贯的巷道组成
E.井下变电所应有两回路以上电缆供电，并应引自地面变电所的不同母线
答案
参考答案：A, B, E
搜题请搜索小程序“爱下问搜题”
下列《煤炭工业矿井设计规范》规定的内容，叙述正确的是()。
A.不在工业场地范围内的立井，井口围护带宽度应为20m
B.斜井井口的围护带宽度应为10m
C.罐笼井筒与井底车场连接处的两侧巷道应设有单边或双边人行道
D.井下水仓应由两条相连贯的巷道组成
E.井下变电所应有两回路以上电缆供电，并应引自地面变电所的不同母线
参考答案：A, B, E
Questions 23-30
· You will hear people from the National Food Council complaining to retailers about the high prices they are charging for food products and household goods. They complain that the shops have marked up wholesale prices far too much.
· For each question (23-30), mark one letter (A, B or C) for the correct answer.
· After you have listened once, replay the recording.
Wage bills have increased because
A．
| A. staff demand higher rates of pay. |
B．
| B. staff work overtime. |
C．
| C. staff have to sell more goods. |