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[单选题]BJ02GG011378 绕线式异步电动机转子回路串入适当大小的起动电阻,( )。
A. 既可以减小起动电流,又可以减小起动力矩
B. 既可以减小起动电流,又可以增大起动力矩
C. 既可以增大起动电流,又可以减小起动力矩
D. 既可以增大起动电流,又可以增大起动力矩

热门试题:

[判断题]( )混凝土路面施工,模板高度应大于面板设计厚度。
A.正确
B.错误
[单选题]仪表精度等级是根据已选定的仪表量程和工艺生产上所允许的最大()求最大允许百分误差(即引用误差、折合误差)来确定的。
A.测量范围
B.相对误差
C.绝对误差
[判断题]甜品站餐饮服务许可申请的受理和审批机关为餐饮主店餐饮服务许可受理和审批机关。 ( )
A.正确
B.错误
[单选题]中共十八届三中全会提出,为建设法治中国,必须深化( )改革
A.宪法体制
B.民法体制
C.司法体制
D.行政体制
[单项选择]

Passage Four
It had been a long, brutal day on the sales floor for young Brent. He’d had his share of "ups"--what retail salespeople say when it’s their turn with the next customer--and more than his share of downs. And now he was in danger of being shut out for the day.
He hadn’t been shut out in a long time. Even in his early days with the company, he could always sell something to someone. He was a natural.
But not on this day. This, of course, exposed him to some good-natured ridicule from his associates, who took not-so-secret delight in seeing the sales genius get his stroke of misfortune.
Brent had more at stake here than just professional pride and reputation, however. Brent was a new father. He and his wife, Kay, had decided that she would be a full-time morn, which meant he would financially support the family. When he did well on the sales floor, finances weren’t a probl
A. had had a good day on the sales floor
B. had met an old friend of his father’s earlier in the day
C. was proud of his father’s achievement
D. was grateful for having a respectable name

[填空题]


[单选题]32107】导线和避雷线的设计安全系数不应小于2.5,施工时的安全系数不应小于( )。 ( )
A.1.5
B. 2
C. 2.5
D. 3
[单项选择]
Who is Mary
[单选题]小儿腹泻,重度脱水,第1天静脉补液的量是
A. 60~90ml/kg
B. 150~180ml/kg
C. 50~60ml/kg
D. 90~120mL/kg
E. 120~150ml/kg
[单项选择]测定血清中何种酶的活性可以反映交感神经的活性()
A. 络氨酸羟化酶
B. 单胺氧化酶
C. 多巴胺-β-羟化酶
D. 儿茶酚胺甲基移位酶
E. 氨基酰转移酶
[单项选择]创造性思维核心是()
A. 形象思维
B. 抽象思维
C. 发散思维
D. 聚合思维
[单项选择]抑制T细胞和B细胞增殖及抗体生成,制止细胞毒性T细胞繁殖()
A. 抗淋巴细胞制剂
B. 霉酚酸酯
C. 环磷酰胺
D. 皮质激素
E. 环孢素
[单选题]对感染危险指数高的患者,应采取
A.传染性隔离
B.保护性隔离
C.全部去污染
D.使用广谱抗生素
E.降低正常菌群抗定植能力
[单选题]PH 大于 7 的浆液呈( )。
A.酸性
B.、碱性
C.中性
D.不确定
[判断题]铝离子与EDTA形成稳定常数是lgK 稳=16.3。
A.正确
B.错误
[单项选择]“我们现在这个时代是一个幻象破灭的时代”是谁的观点()?
A. 宇野浩二
B. 泷井孝作
C. 长谷川天溪
D. 尾崎一雄
[单项选择]对有关契税政策,表述正确的是( )。
A. 城镇职工购买公有住房,免征契税
B. 契税在土地、房屋所在地的征收机关缴纳
C. 契税税率由各省、自治区、直辖市税务机关在规定的幅度内,根据本地区的实际情况确定
D. 购买商品房的外籍人员不征收契税
[单项选择]
The Sea

What do you know about the sea We know that it looks very pretty when the sun is shining on it. We also know that it can be very rough when there is a strong wind. What other things do we know about it
The first thing—to remember is that the sea is very big. When you look at the map of the world you will find there is more water than land. The sea covers three quarters of the world.
The sea is also very deep in some places. It is not deep everywhere. Some parts of the sea are very shallow. But in some places the depth of the sea is very great. There is one spot, near Japan, where the sea is nearly 11 kilometres deep! The highest mountain in the world is about 9 kilometres high. If that mountain were put into the sea at that place, there would be 2 kilometres of water above it! What a deep place!
If you have swum in the sea, you know that it is salty. You can taste the salt. Rivers, which
A. To show that the sea in some places is very deep.
B. To show that the sea in some places is very shallow.
C. To show that its depth is 9 kilometres greater than the height of the highest mountain.
D. To show that its depth is 11 kilometres greater than the height of the highest mountain.

[单选题]电务、工务人员应根据车务应急值守人员(列车调度员)的布置现场准备进路,()按规定加锁。
A.车务
B.电务
C.工务
D.车站
[单项选择]对于不符合报送要求的数据,总行应及时通知所属分行,分行及时修改后重新汇总上报;当日不能按时报送的,最晚于()之前进行补报。
A. 次日12:00点
B. 次日15:00点
C. 次日17:00点
D. 次日18:00点
[单项选择]某公司年初股东权益为1 500 万元,全部付息债务为500万元,预计今后每年可取得息税前利润600万元,每年净投资为零,所得税率为40%,加权平均资本成本为10%,则该企业实体价值为( )万元。
A. 3 600
B. 2 400
C. 2 500
D. 1 600
[单项选择]单层.多层民用建筑之间的防火间距三级耐火等级建筑和四级耐火等级建筑之间的距离不应小于()米。
A. 7
B. 8
C. 9
D. 10
[多选题]消防员晋升上一级消防救援衔,应具备下列条件:( )
A.身体、心理健康,品行良好;
B.遵纪守法、作风正派、能胜任本职工作;
C.晋升二级、一级消防士和三级(二级)、一级消防长应分别取得中级、高级、技师、高级技师职业技能等级;
D.经过相应培训且考核合格;
[判断题]用电信息采集系统可以配合营销业务应用系统实现有序用电管理。
A.正确
B.错误
[多项选择]在17、18世纪的资产阶级思想家,大都鼓吹必须对政府的权力加以限制,这种限制主要表现为( )
A. 政府应承认被统治者的自由权利
B. 必须剥夺君主的一切权力
C. 政府制定的重要政策和措施,应得到被统治者的同意
D. 通过政府的干预和努力,使人们获得“民主”和“自由”
E. 实行“三权分立”
[单选题]《建筑设计防火规范》规定一类高层居住建筑高位消防水箱的消防储水量不应小于( )m3。
A.6
B.9
C.12
D.18
[判断题]各企业设备管理部门负责临时用电归口管理。
A.正确
B.错误
[单项选择]

Visitors to this country are normally admitted for six months, but foreign students can usually stay for one year. They must (52) an educational institution, and they are required to study for a (53) of fifteen hours a week on a daytime course. Prospective students have to show that they can afford their studies, and that they have sufficient (54) resources to support themselves (55) in this country.
In order to work here the foreigner needs a work permit, (56) must be applied for by his prospective employer. The problem here is that the Department of Employment has the right to grant or (57) these permits, and there is little that can be done (58) it; it would be extremely unwise for a foreign visitor to work (59) a permit, since anyone doing so is liable to immediate deportation (驱逐出境). There are some people from the European countries, who are often given (60) residence permits of up to fi
A. receive 
B. refuse 
C. oppose 
D. accept

[单项选择]违反《民用爆炸物品安全管理条例》的规定,携带民用爆炸物品搭乘公共交通工具或者进入公共场所,邮寄或者在托运的货物、行李、包裹、邮件中夹带民用爆炸物品,尚不构成犯罪的,由公安机关依法给予治安管理处罚,没收非法的民用爆炸物品,处( )的罚款。
A. 1万元以上10万元以下
B. 1000元以上1万元以下
C. 2万元以上20万元以下
D. 2万元以上10万元以下
[多选题]影响粉尘爆炸的因素有粉尘的( )等。
A.颗粒度
B.挥发性
C.水分
D.灰分
E.火源强度
[单选题]Ⅲa期空洞型宫颈癌合并阴道狭窄,最佳治疗方案是(1.00分)
A.放射治疗+手术+化学治疗
B.化学治疗+手术+放射治疗
C.根治性放射治疗,适当增加外照射剂量,减少腔内照射剂量
D.根治性放射治疗,腔内照射剂量和外照射剂量相同
E.手术+放射治疗
[单选题]、“降臂”的专用手势信号是单手手臂向一侧水平伸直拇指朝下,余指握拢,小臂向()摆动。单选
A.下
B.上
C.左
D.右
[判断题]资本主义新变化在于改变资本主义的基本矛盾。( )
A.正确
B.错误
[单选题]公安机关对被拘留的人,应当在拘留后的( )小时以内进行讯问。在发现不应当拘留的时候,必须立即释放,发给释放证明。
A.8
B.12
C.24
D.36
[单选题]凡有人员死亡的火灾,公安机关刑侦部门接通知后都应派员到现场参加调查。
A.正确
B.错误
[多选题]局《铁路旅客运输服务质量规范》中特殊重点旅客是指依靠辅助器具才能行动等需特殊照顾的重点旅客, 现场也可根据旅客( )和( )来判断。
A.本人要求
B.状态
C.是否需要帮助
D.同行人要求
[单项选择]周围静脉补充营养,适用于()。
A. 肢体骨折术后
B. 非胃肠道手术后使用机械通气者
C. 不超过1周的全胃肠外营养者
D. 不超过2周的全胃肠外营养者
E. 长期需要胃肠道外营养者
[判断题] 根据《国家电网有限公司安全事故调查规程》(国家电网安监〔2020〕820号),一般以上事故,五级人身、电网、设备以及信息系统事件由省公司组织调查,不需上报到国网总部(分部)。
A.正确
B.错误

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