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【单选题】
The largest part of the light energy directed towards the earth is ______A.
stored up by the plants
B.
absorbed by the earth's atmosphere
C.
stored up by the animals in the form. of body fat
D.
used for electric power
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【多选题】What examples are used to illustrate the characteristic of personal space as described in Para. 5--personal space is a relative concept.
A.
People who live in Calcutta have less personal space than folks in Colorado.
B.
To an Englishman, a handshake can seem like trespassing.
C.
To a Brazilian, anything less than a hug may come across as chilliness.
D.
The logistics of it vary according to geography.
【简答题】某发酵过程工艺规定操作温度为（40±2）℃。考虑到发酵效果，控制过程中温度偏离给定值最大不能超过6℃。现设计一定值控制系统，在阶跃扰动作用下的过渡过程曲线如图所示。试确定该系统的最大偏差、衰减比、余差、过渡时间和振荡周期等过渡过程指标？
【单选题】The factor affecting personal space is ______.
A.
person
B.
culture
C.
geography
D.
All of the above
【简答题】某发酵过程工艺规定操作温度为(40±2)℃。考虑到发酵效果，控制过程中温度偏离给定值最大不能超过6℃。现设计一定值控制系统，在阶跃扰动作用下的过渡过程曲线如图1-24所示。试确定该系统的最大偏差、衰减比、余差、过渡时间(按被控变量进入±2%新稳态值即达到稳定来确定)和振荡周期等过渡过程指标，并回答该系统能否满足工艺要求?
【多选题】After realizing the shrinking of personal space is related to the inner space, the author decides .
A.
to expand the contracting boundaries of personal space.
B.
not to move closer than three feet to the person in front of me, even if it means that the fellow behind me starts breathing down my neck.
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