[单选题]出现( )时发电机应紧急手动停运。-我要搜题网

[多选题]生产过程LF炉炉盖升降条件（）。
A.钢包车可以在加热工位任意位置
B.钢包车处于加热工位准确位置
C.电极升降机构处于升起位置
D.电极升降机构处于下限位置

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[单选题]1．血栓闭塞性脉管炎的护理不正确的是
A.防止外伤
B.局部热敷
C.保暖，避免受寒
D.肢端坏疽应保持干燥
E.患者休息时应保持头高脚低位

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[简答题]出乘时，司机、学习司机须____，按规定着装，驾驶证必须齐全、有效。

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[单项选择]衡量声波在传播过程中声音强弱的物理量叫（）。
A. 声强
B. 声能
C. 声压
D. 声级

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[单项选择]患者，女，30岁，已婚。突发尿痛、尿频、尿急，腹痛半天。检查：肾区无叩击痛，尿中白细胞（++），中段尿细菌培养为大肠埃希菌。其诊断是（）。
A. 急性肾小球肾炎
B. 急性肾盂肾炎
C. 急性膀胱炎
D. 肾结核
E. 肾结石

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[判断题]横越线路时，禁止从车辆下部或车钩处通过。在停留列车、车辆前部或尾部通过时，应与其保持2m以上距离。
A.正确
B.错误

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[单项选择]Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it landed upside down in three feet of water. Mr. Johnson took the only escape route—through the boot.
Mr. Johnson’s car had finished up in a ditch at Romney Marsin, Kent after skidding on ice and hitting a bank. "Fortunately, the water began to come in only slowly, " Mr. Johnson said. "I couldn’t force the doors because they were jammed against the walls of the ditch and dared not open the windows because I knew water would come flooding in. "
Mr. Johnson, a sweet salesman of Sitting Home, Kent, first tried to attract the attention of other motorists by sounding the horn and hammering on the roof and boot. Then he began his struggle to escape.
Later he said, "It was really a half penny that saved my life. It was the only coin I had in my pocket and I used it to unscrew the back seat to get into the boot. I hammered desperately with a hammer trying to make someone
A. the ditch was along a quiet country road
B. the accident happened on a clear warm day
C. the police helped Mr. Johnson get out of the ditch
D. Mr. Johnson had a tender wife and was well attended

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[单选题]下面属于一般故障的是
A.系统功能未受损害或只有轻微损害的情况
B.安全危险、出现安全保障被侵犯的风险
C.任何丧失产品管理和维护的可见度和/或诊断能力
D.基本部件或功能的反复衰退

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[单选题]完钻井深和相应井段的钻头直径、下入套管层数、直径和深度、各套管外水泥返高、( )等称为井身结构参数。
A.采油树
B.人工井底
C.喇叭口
D.套管距

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[单选题]佩戴式防爆照明灯是消防员在各种易燃易爆场所消防作业时使用的不需手持的移动照明灯具,根据佩戴方式主要可分为头戴式、肩挎式、腰挂式、吊挂式等多种式样。( )(易)
A.正确
B.错误

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[单选题]《铁路电力安全工作规程》（铁运【1999】103号），电缆线路径路的巡视应（）一次。
A.每月
B.每季
C.每半年
D.每年

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[单选题]个人礼仪存单起点金额是（）元。
A.20
B.50
C.100
D.200

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[单选题]、当采用扣件式钢管作立柱支撑时,下列选项不符安装构造规定的是0 O
A. 钢管规格、间距、扣件应符合设计要求
B. 当立柱底部不在同一高度时,高低差不得大于2m
C. 严禁将上段的钢管立柱与下段钢管立柱错开固定
D. 钢管支架立柱间距应符合规范的规定

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[单项选择]在副翼前缘加配重，可以防止（）。
A. 副翼操纵反效
B. 机翼弯扭颤振
C. 尾翼颤振
D. 机翼弯曲—副翼颤振

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[单选题]75、列车按运输性质分类分为旅客列车和（）
A.A、救援列车
B.B、路用列车
C.C、军用列车

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[单项选择]有釉陶瓷锦砖的吸水率不大于（）
A. 6%
B. 4%
C. 2%
D. 1%

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[单选题]变压器零序过流保护一般接于变压器（）。
A. 高压侧的电流互感器上
B. 低压侧的电流互感器上
C. 中性点的电流互感器上
D. 中压侧的电流互感器上

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[判断题]1979年1月1日,全国人大常委会发表《告台湾同胞书》,提出尊重台湾现状、实现和平统一的大政方针,建议两岸实现通商、通邮、通航。( )
A.正确
B.错误

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[多选题]10、行政许可法的制定目的是（）。
A.规范行政许可的设定和实施
B.保护公民、法人和其他组织的合法权益
C.维护公共利益和社会秩序
D.保障和监督行政机关有效实施行政管理

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[单项选择]

Until about four decades ago, crop yields in agricultural systems depended on (1) resources, recycling organic matter, built-in biological control mechanisms and rainfall patterns. Agricultural yields were (2) but stable. Production was (3) by growing more than one crop or variety in space and time in a field as insurance against pest (4) or severe weather. Inputs of nitrogen were (5) by rotating major field crops with legumes. In turn, rotations suppressed insects, weeds and diseases by effectively (6) the life cycles of these pests. A typical corn belt farmer grew corn (7) with several crops including soybeans, and small grain production was intrinsic to maintain livestock. Most of the labor was done by the family with occasional hired help and no (8) equipment or services were purchased from off4arm sources. In these type of farming systems the link between agriculture and ecology was quite (9) and signs of environ
A. small
B. equivalent
C. modest
D. maximum