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【单选题】
安装在轿厢与层门之间的( )的作用是:当电梯关门时,如触板碰到人或物体阻碍关门时,开关动作,使门重新开启。A.
停止装置
B.
超载保护装置
C.
防夹安全保护装置
D.
断带保护
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举一反三
【单选题】Match the following expressions with corresponding writing steps.
A.
the actual writing of the business document
B.
three key factors: the objective, the reader and the scope of writing
C.
turningthe draft into the finished product
D.
gathering information, sorting details, and making outlines
E.
choosing the best format or layout for the document1. preparing
【简答题】Fill in the blanks with the words. Each word can be used only once. promising bearing housing objective offend exclude excess execute intensify ...
【简答题】When we comment on a diet, both objective and subjective factors are taken into consideration. Many medical and governmental institutions make great efforts to provide dietary advice. Because these ef...
【简答题】Value ysis is an examination of the factors affecting the cost of a product or service with the objective of achieving the specified purpose most economically at the required level of quality and ...
【多选题】下列关于柔印工艺特点的说法中正确的是 。
A.
可使用无污染、干燥快的油墨，环保性较好
B.
柔印用版材具有柔软可弯曲、富于弹性的特点，属于轻压印刷
C.
印刷生产效率高、生产周期短
D.
机器设备结构简单，投资少，操作及维护简单
【多选题】Objective factors of communication barriers.
A.
Barriers to information recognition.
B.
Barriers to communication environment.
C.
Barriers to communication channel.
D.
Barriers to communication feedback.
【简答题】Adjustment of parking price has long been considered an effective way to control parking demand and demand has often been shown to be affected by spatial factors. The primary objective of this study i...
【判断题】The pricing objective depends on many factors including production cost, economies of scale, product differentiation and so on.
A.
正确
B.
错误
【简答题】美国当今发行量第一的报纸是
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