搜题请搜索小程序“爱下问搜题”
问题 多项选择题

影响应收账款周转率的因素有( )。

A．销售收入净额

B．销货成本

C．期初应收账款

D．期末应收账款

E．销售退回、折让和折扣

答案

参考答案：A,C,D,E

解析： 应收账款周转次数=销售收入净额/应收账款平均余额，销售收入净额=销售收入-销售退回、折让和折扣，应收账款平均余额=(期初应收账款+期末应收账款)/2。可见，选项ACDE是正确的。

听力题

请根据句意或括号中的中文提示、英文释义，写出句中所缺单词，使句子通顺。

小题1:I was good at all the ________________ except physics when I was at school. I still think it is difficult now.

小题2:As a host, she has many duties, but her main job is to _________ (介绍) the pop stars.

小题3:Don’t run _____________ (穿过)the road when the traffic lights are red. It’s dangerous.

小题4:Nowadays, some people become ___________ (unable to hear at all) because of noise pollution.

小题5:Most students feel ________ (tired and unable to relax) and angry from time to time because their parents are strict with them.

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单项选择题

关于锅炉吹灰，以下说法不正确的是（）。

A．废气锅炉在主机启动和机动航行后尤其要吹灰

B．燃油锅炉在排烟温度或送风机风压明显升高时要吹灰

C．燃油锅炉至少每2周应吹灰一次

D．吹灰次数应严格按说明书规定执行
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