| The expensive shops in a famous arcade
(有拱廊的街道) near Piccadilly were just opening. At this time of the morning, the
arcade was almost empty. Mr. Taylor, the owner of a jewellery shop was admiring
a new window display. Two of his assistants had been working busily since 8
o’clock and had only just finished. Diamond necklaces and rings had been
beautifully arranged on a background of black velvet (丝绒). After gazing at the
display for several minutes, Mr. Taylor went back into his shop. The silence was suddenly broken when a large car, with its headlights on and its horn blaring (喇叭响声), roared down the arcade. It came to stop outside the jeweller’s. One man stayed at the wheel, two others with black stockings over their fa A. 2. B. 3. C. 4. D. 5. [单选题]在没有脚手架或者在没有栏杆的脚手架上工作，高度超过( )m,应使用安全带
A.1.5 B.1.2 C.2 D.1 [多选题]列车司机在操纵机车时，需要做到（ ）。
A.起动稳，加速快 B.精心操纵，停车准确 C.按规定鸣笛 D.防止冲动和断钩 [多选题]网络安全检查内容包括（ ）。
A.网络边界 B.主机安全 C.网络防火墙 D.网站内容 E.终端用户注册情况 [单项选择]电流互感器二次侧不许（）。
A. 接地 B. 开路 C. 短路 [判断题]航空人员应当接受国务院民用航空主管部门定期或者不定期的检查和考核；经检查、考核合格的，方可继续担任其执照载明的工作。
A.正确 B.错误 [判断题]气体的种类不同,气体间隙的击穿电压相同。
A.正确 B.错误 [单项选择]The wild flowers looked like a soft orange blanket ______ the desert.
A. covering B. covered C. cover D. to cover [单选题]
在绝缘层表面加一层半导电材料,制成(____),使其与金属护套等电位,从而避免在绝缘层和护套之间发生局部放电。 A. 导体屏蔽层 B. 绝缘屏蔽层 C. 内层护套 D. 金属屏蔽层 [多选题](466316)用于控制载气流速的设备通常有( )。(1.0分)
A.减压阀 B.稳压阀 C.针型阀 D.稳流阀 [单选题]非电量保护继电器宜配置（）跳闸接点，构成三取二逻辑。
A.一个 B.两个 C.三个 D.四个 我来回答: 提交
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