热门试题:
[单选题]《中华人民共和国民法典》第十七条规定, 以上的自然人为成年人。不满 的自然人为未成年人。
A.十八周岁 十八周岁
B.十四周岁 十四周岁
C.十六周岁 十六周岁
D.二十周岁 二十周岁
[单选题]更换熔断器时应戴好( )避免触碰带电端子。
A.劳保手套
B.绝缘手套
C.石棉手套
D. PVC手套
[单选题]进入煤气设备内部工作时,所用照明电压不得超过()。
A.36V
B.24V
C.12V
[单项选择]绝对粗糙度与油品输送的管道直径的比值叫（）。
A. 管道阻力
B. 相对粗糙度
C. 平均阻力
D. 管道平均阻力
[单项选择]IBM's Deep Blue is ______.
A. a robot
B. a chess master
C. a programmed chess rival
D. a computer designer
[判断题]各级测试要严格按照规定的测试项目及测试周期进行测试。
A.正确
B.错误
[单选题]Je4A3228当SF6气瓶压力降至( )MPa时,应停止充气,因剩余气体含水量和杂质可能较高。
A.0.1;
B.0.2;
C.0.5;
D.1.0。
[单项选择]企业生产中药饮片应具有（）
A. 《药品经营许可证》
B. 《药品生产许可证》
C. 《医疗机构制剂许可证》
D. 药品注册商标
E. 药品批准文号
[单项选择]
In a way, all of us are on a spaceship, the planet Earth. We move around the sun (36) 18 miles per second and never stop. On our spaceship we have five billion people and a limited supply of air, water, and land. The (37) have to be used carefully because we can’t buy new air, water, or land from (38) else.
The environment on our planet is a closed system: nothing new is ever added. Nature (39) its resources. Water, for example, evaporates and (40) as visible drops to form clouds. This same water returns to the Earth as rain or snow. The rain that falls today is actually the same water fell on the (41) 70 million years ago.
Today, the Earth is in trouble. Factories (42) dirty water into our rivers. Many fish die and the water becomes unhealthy for people to drink. Cars and factories put poisons (43) the air and cause plants, animals and people to get sick. People throw bottles and paper out of their car
A. air
B. water
C. land
D. supplies
[单项选择]商品混凝土现场应按（）方留置混凝土试块。
A. 100m2
B. 200m2
C. 500m2
D. 1000m2
[单选题]全党同志一定要团结带领全国各族人民决胜全面建成小康社会,奋力夺取( )中国特色社会主义伟大胜利。( )
A.新阶段
B.新世纪
C.新时期
D. 新时代
[单选题]根据《中华人民共和国国家安全法》的规定，公民和组织支持、协助国家安全工作的行为（ ）。
A.应当受到称赞
B.有关部门应当给予表扬
C.是正当行为
D.受法律保护
[单项选择]库肯勃瘤是（）
A. 良性卵巢肿瘤
B. 原发于胃肠道卵巢转移性肿瘤
C. 囊性肿瘤
D. 子宫肌瘤红色变
E. 纤维瘤
[单选题]动脉穿刺的常见部位不包括
A.桡动脉
B.股动脉
C.颈动脉
D.足背动脉
E.肱动脉
[单项选择]细长轴热变形伸长量的计算公式为：（）。
A. △L=α²L²△t
B. L=α²L²t
C. L=α²L²△
D. △L=α²L
[简答题]创建存储过程p01，按学号查询学生表中的姓名，性别，所在系（学号为输入参数）
[单项选择]
Such Accidents Are Rather Common
We all have (36) days when everything (37) wrong. A day may begin well enough, but suddenly everything seems to get out of control It seems as if a single unimportant thing may cause a number of things to happen. Let us (38) that you are (39) a meal and keeping an eye (40) the baby at the same time the telephone rings and this means your troubles are beginning. While you are (41) the phone, the baby pulls the tablecloth off the table, (42) your half-prepared meal. You hang up hurriedly and attend (43) your baby. Meanwhile, the meal gets (44) . (45) if this were not enough to bring you to tears, at the same time, your husband arrives, unexpectedly (46) three guests to dinner.
Things can go wrong on (47) people on the road. During the rush hour one evening two cars hit each other and troth drivers began to argue. The woman driver behind the two cars h
A. at
B. in
C. on
D. to
[单选题]《安规》规定：在10kV带电线路附近立、撤杆塔，起重设备应与带电线路保持(____)m以上的安全距离。
A.0.6
B.1
C.1.5
D.2
[单选题]Jf4A3313YD 有一个弯曲时,管路长度超过( )长度时,应加装接线盒。
A. 30m
B. 20m
C. 15m
D. 10m
[单选题]在光纤通信中，数字码流由（ ）构成。
A.十进制
B.B.二进制
C.八进制
D.十六进制
[单项选择]The example of an Avril Lavigne phone is given to illustrate that ______.
A. the new wireless phone has a bigger memory than the average one
B. music-loving, fashionable teenagers are its target customers
C. the functions of current mobile phones are very changeable
D. its price is not very high concerning its various functions
[单选题]容许速度不超过160km/h的线路，辙叉翼一侧纵向水平裂纹长度超过（）mm时，应及时更换。
A.90
B.80
C.70
D.60
[多选题] 部“公安云搜索平台”轨迹比对功能,可以实现一次比对( )个人员
A. 2
B. 3
C. 4
D. 5
[判断题]在电气设备上工作，对难以做到与电源完全断开的检修设备，可以不拆除设备与电源之间的电气连接。（ ）
A.正确
B.错误
[填空题]公共场所卫生监督量化分级管理制度遵循（）的原则。
[单选题] 新投运的变压器应经( )全电压冲击合闸
A. 一次
B. 三次
C. 五次
D. 七次
[多选题]举办一次大型活动,除举办单位外,还需要哪些部门配合( )。
A.. 公安
B.. 供水
C.. 供电
D.. 医疗
E.. 交通
[判断题]根据《YD/T5166-2009本地网光缆波分复用传输系统工程设计规范》，传输机房的工作接地、保护接地和防雷接地宜采用分开引接方式。
[单项选择]能使所含毒药成分叠加的药组是（）
A. 健脾丸与良附丸
B. 天麻丸与大活络丸
C. 痹颗粒与川贝枇杷露
D. 牛黄解毒丸与柏子养心丸
E. 妇血康颗粒与益母草颗粒
[单选题]动脉导管未闭
A.Austin-Flint 杂音
B.Graham-steel 杂音
C.收缩中晚期喀喇音
D.室性奔马律
E.胸骨左缘第 3 肋间连续性机器滚动样杂音
[判断题]变压器工作时，电压较低的绕组通过的电流较小。（）
[填空题]根据《工作场所安全使用化学品的规定》,使用单位购进危险化学品时, 必须核对包装( )上的( )。(
[单选题] 电流互感器和电压互感器的二次绕组应有( )永久性的、可靠的保护接地。
A. 一点且仅有一点
B. 两点
C. 多点
D. 至少一点
