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【判断题】
变导程螺纹的有等槽宽和等牙宽变螺距螺纹。A.
正确
B.
错误
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举一反三
【单选题】Japanese Car Keeps Watch for Drunk Drivers A concept car developed by Japanese Company Nissan has a breathalyzer-like detection system and other instruments that could help keep drunk or over-tired dr...
A.
It has a sensor system that could issue a warning if the driver is drank.
B.
It has sensors that detect traces of alcohol inside the car.
C.
It has sensors locked up in the ignition system.
D.
It has a breathalyzer-like detection system.
【多选题】信息化战争发展趋势之一就是实现指挥平台与作战手段的高度智能化,其表现包括:
A.
指挥控制手段高度自动化和智能化
B.
大量智能化的武器系统和平台装备军队
C.
许多作战行动发生在智能化领域
D.
作战部队的规模将扩大
【单选题】听力原文：M: Have you received a check from the company to cover the damage to your car? W: Not yet.but I expect one within the next few days. Q: What are the speakers probably talking about? (18)
A.
A check account.
B.
A loan from the bank.
C.
An insurance claim.
D.
An income tax return.
【单选题】The company designed a new car last month and about 500 cars of this type _____ in the factory next month. [ ]
A.
were produced
B.
will produce
C.
have been produced
D.
will be produced
【简答题】如图所示的转速、电流双闭环直流调速系统稳态运行时,转速给定值为Un*,负载电流IdL。 回答如下问题: (1)正常情况下,ASR、ACR两个调节器的状态、输入偏差电压、输出电压各是多少?(填入到下表第2列,每个空1分,共6分) (2)若由于机械原因,造成电机转轴堵死,此时ASR、ACR两个调节器的状态、输入偏差、输出偏差电压又是多少?(填入到下表第3列,每个空1分,共6分) (3)分析由于机械原因...
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