题目内容

A、B两个企业2017年度实现会计利润200万元,其中A企业的销售方式为现销,B企业的销售方式为赊销,本年度产生的款项已收回70%,在利润最大化目标下,请选择经营较好的企业。

A企业较好
B企业较好
C. A、B企业经营效果一样

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Tim:Hey, Hilary. How is your (1) ___________ this semester?Hilary:Let me see. I have it right here. It looks pretty busy. I have math class onTuesday and Thursday morning. On Monday, Wednesday and Fridayafternoon I have physics. Those are my (2) ___________ courses becauseI’m a physics major.Tim:How about (3) ___________ classes? Are you taking anything else?Hilary:Yes, I’m taking a course in Roman history as an elective. The class is everyFriday morning. How about you, Tim? How is your schedule this (4)___________?Tim:It’s crazy! I have English class every day. I am taking a Shakespeare class,too. He is my (5) ___________ writer. It’s going to be a busy semester.Hilary:You can say that again.

西门子PLC中计数器的种类有几种?

A. 1种
B. 2种
C. 3种
D. 4种

在西门子编程软件中指令名称为CTU的计数器是什么计数器?

A. 减法计数器
B. 加法计数器
C. 加减计数器
D. 不是计数器

在西门子编程软件中指令名称为CTD的计数器是什么计数器?

A. 加法计数器
B. 减法计数器
C. 加减计数器
D. 不是计数器,是定时器

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