题目内容（请给出正确答案）

[单选题]

“周期时间”（C/T，Cycle Time）是指（）

A.一个产品从上生产线开始一直到成品下线的时间

B.指一个经过培训且合格的熟练员工以标准的作业速度按照操作规范完成一个合格的产品或工序所需要花费的时间

C.按照生产计划要求或客户要求必须生产的产品数量而设定的生产线完成一个产品或工序的时间

D.小时工作量或单位时间工作量

答案

A、一个产品从上生产线开始一直到成品下线的时间

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更多““周期时间”（C/T，Cycle Time）是指（）”相关的问题

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第2题

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第3题

因果周期信号f（t)=f（t)u（t)，周期为T，若第一周期时间信号为f1（t)=f（t)[u（t)-u（t-T)]，它的拉式变换为[f1（t)]=

因果周期信号f(t)=f(t)u(t)，周期为T，若第一周期时间信号为f₁(t)=f(t)[u(t)-u(t-T)]，它的拉式变换为 $因果周期信号f（t)=f（t)u（t)，周期为T，若第一周期时间信号为f1（t)=f（t)[u（t)$ [f₁(t)]=F₁(s)，求 $因果周期信号f（t)=f（t)u（t)，周期为T，若第一周期时间信号为f1（t)=f（t)[u（t)$ [f(t)=F(s)]表达式。

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第4题

Do you find getting up in the morning so difficult that it's painful？ This might be called

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During the hours when you labor through your work you may say that you're "hot." That's tree. The time of day when you feel most energetic is when your cycle of body temperature is at its peak. For some people the peak. comes during the forenoon. For others it comes in the afternoon or evening. No one has discovered why this is so, but it leads to such familiar monologues (自言自语) as: "Get up, John! You'll be late for work again!" The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean, and which cycle each member of the family has.

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Get off to a slow start which saves your energy. Get up with a leisurely yawn and stretch. Sit on the edge of the bed a minute before petting your feet on the floor. Avoid the troublesome search for clean clothes by laying them out the night before. Whenever possible, do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours.

If a person finds getting up early a problem, most probably ______.

A．he is a lazy person

B．he refuses to follow his own energy cycle

C．he is not sure when his energy is low

D．he is at his peak in the afternoon or evening

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第5题

Do you find getting up in the morning so difficult that it is painful? This might be c

Do you find getting up in the morning so difficult that it is painful？ This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. During the hours when you labour through your work you may say that you’re “hot”. That’s true. The time of day when you feel most energetic is when your cycle of body temperature is at its peak. For some people the peak comes during the forenoon. For others it comes in the afternoon or evening. No one has discovered why this is so, but it leads to such familiar monologues (自言自语) as: “Get up, John! You’ll be late for work again!”The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean, and which cycle each member of the family has. You can’t change your energy cycle, but you can learn to make your life it better. Habit can help, Dr. Kleitman believes. Maybe you’re sleepy in the evening but feel you must stay up late anyway. Counteract (对抗) your cycle to some extent by habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day, rise before your usual hour. This won’t change your cycle, but you’ll get up steam (鼓起干劲) and work better at your low point. Get off to a slow start which saves your energy. Get with a leisurely yawl and stretch. Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the trouble some search for clean clothes by laying them out the night before. When ever possible, do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours.

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A、he is a lazy person

B、he refuses to follow his own energy cycle

C、he is at his peak in the afternoon or evening

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A、Unawareness of energy cycles.

B、Familiar monologues.

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D、A change in a family member’s energy cycle.

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B、overcome his laziness

C、go to bed earlier

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A、help to keep your energy for the day’s work

B、help you to control your temper early in the day

C、enable you to concentrate on your routine work

D、keep your energy cycle under control all day

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A、Getting off to work with a minimum effort helps save one’s energy.

B、Dr. Kleitman explains why people reach their peak at different hours of day.

C、Habit helps a person adapt to his own energy cycle.

D、Children have energy cycles, too.

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第6题

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