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【单选题】
下列电器中___是主令电器,它是用于自动控制系统中发送动作指令的电器。
A.
接触器
B.
行程开关
C.
熔断器
D.
电磁离合器
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举一反三
【简答题】一、选词填空(只填字母序号) (1x5=5 分 ) A. become aware of; B. upside down; C. was almost scared to death; D. reflect on; E. brought in 1. You should _________________the plan for a moment, and then make a decision...
【判断题】冷却是食品冷藏前的必经阶段( )
A.
正确
B.
错误
【多选题】What is 5G technology?When it arrives,5G technology will utilize a higher-frequency band of the wireless spectrumcalled millimeter wave that allows data to be transferred much more rapidlythan the low...
A.
毫米波频段的 5G 比低频段的 5G 有更大的发展潜力
B.
由于频率升高,视距传播距离限制, 5G 一般需要比 4G 系统更为密集的基站体系
C.
5G 但基站功耗低,可以实现远距离传输
D.
How much better than 4G will it be? It depends who you ask. Verizon has said that its 5G network will likely deliver speeds 200 times faster than many of its 4G LTE users get now. According to Gizmodo, 5G networks will have the capacity for transfer speeds 10 times those of 4G networks. Other forecasts vary considerably, with some experts saying that 5G connections will initially be about three times faster than 4G, and others making claims on par with Verizon's. One big reason for those discrepancies is that 5G hardware standards haven't yet been agreed upon by the telecommunications industry. The carriers are still developing several versions of the technology. So naturally, there's no clear "speed multiple." But all companies involved are pursuing 5G that will be significantly faster than today's mobile wireless connections. (5G 和 4G 对比,速率优势比例不确定,优势肯定有)
【简答题】Sentence translation 1 抛下孩子们的决定现在总让她不安。 The decision to leave her children now haunts her. 2 每到假期,黄金海岸就会迎来络绎不绝的游客。 (constant) T here will be a constant stream of visitors in the Gold Coast during holi...
【单选题】借口就是承认活动本身是错的,但是当事人否认他应当承担贵任,辩解则是承认应当对活动承担贵任,但是当事人否认这项活动是错的,面对失败的事件时,人们使用借口以尽可能地减轻自己应当承担的贵任;而人们使用辩解的目的是试图重新界定有争议的行动,使之肴起来不至于太差。 根据上述定义,下列属于辩解的是( )。
A.
小李失去了一笔业务,给公司造成了一定损失,他说,这是由于他腿伤发作迟到了半个小时造成的
B.
某部门工作出现失误,负责人说:“他们决定时根本就没有征求我的意见,我对此一无所知。”
C.
某国消费者对在包装中加入一氧化碳使肉类看起来红润新鲜的做法表示质疑,但该国食品管理局称这种做法“总体上”是安全的
D.
某公司产品出现质量问题,声明说这是由于他们使用了其他公司生产的不合格部件造成
【单选题】In three or four years surgical users of virtual reality technology will be able to experience touch and smell.
A.
T
B.
F
【单选题】The article predicts that new diagnostic technology will be available in the next generation CNCs.
A.
T
B.
F
【单选题】Intel Corp. will try to liven up the drab desktop PC later this year with new technology that will help convert the home computer into an entertainment hub, but advertising and technology ex- pelts sa...
A.
be advertised worldwide.
B.
be much cheaper.
C.
become an all-purpose multimedia device.
D.
be more straightforward.
【单选题】血小板的清除主要是( )
A.
毛细血管内
B.
脾脏
C.
肝脏
D.
肾脏
E.
骨髓
【简答题】Fill in each blank with the proper form of the words given below to complete the following passage. _1__(base) on the statistics of the US Bureau of Labor, it is believed that the __2__( popular ) thr...
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