热门试题:
[单项选择]人胰腺内可分泌Insulin的细胞是().
A. PP细胞
B. D细胞
C. B细胞
D. A细胞
[多项选择]急性肾盂肾炎的全身典型临床表现有( )
A. 起病急,来势迅速,播散快
B. 常出现寒战、高热、面色潮红
C. 血压升高、伴抽搐
D. 恶心,甚至伴呕吐
E. 腹痛、腹胀甚至腹泻
[单选题]1.2校车标牌分前后两块,分别放置于前风窗玻璃________和后风窗玻璃________。
A.右下角、右下角
B.左下角、左下角
C.右下角、适当位置
D.适当位置、适当位置
[多选题]TVM 纸币的补币原则()。
A.每个补币箱补币张数不得超 200 张
B.运营前每台补币金额上限为 300 元(1 元 200 张,5 元 20 张)
C.每台补币金额下限为 100 元(1 元 50 张,5 元 10 张)
D.运营中找零不足的补币原则是最低补币金额
为 50 元/次,最高不超过 300 元/次
[单选题]B2G是一种( )。
A.企业与消费者之间的电子商务
B.企业与政府之间的电子商务
C.消费者与消费者之间的电子商务
D.企业与企业之间的电子商务
[判断题]列车牵引控制采用硬线优先的控制方式,网络紧急牵引控制作为备用。
A.正确
B.错误
[填空题]《高速铁路行车组织细则》(NCG/02-2018)规定接发办理客运业务的动车组列车的固定()应在列车运行图或列车开行文件中公布。
[单选题]施工地段放行列车时,轨道静态几何尺寸偏差不得超过()(允许速度vmax=120km/h)容许偏差管理值。
A.临时补修
B.经常保养
C.作业验收
D.TOI评定
[判断题]《铁路旅客运输规程》中规定,在无人售票的乘降所上车的人员,可在列车内购票,核收手续费。()
A.正确
B.错误
[判断题]《危险化学品企业安全风险隐患排查治理导则》规定,试生产管理工作的实施情况,主要包括:
(1)系统冲洗、吹扫、气密等工作的开展及验收;
(2)单机试车及联动试车工作的开展及验收;
(3)投料前安全条件检查确认
A.正确
B.错误
[多选题]关于变电站(生产厂房)外墙、竖井等处固定的爬梯,以下说法正确的是()
A.爬梯应牢固可靠,并设护笼
B.高百米以上的爬梯,中间应设有休息的平台
C.爬梯应定期进行检查和维护
D.垂直爬梯宜设置人员上下作业的防坠安全自锁装置或速差自控器,并制定相应的使用管理规定
E.略
[判断题]在隧道内设置380/110V插座箱,供机械化养路用电。
A.正确
B.错误
[单选题]已知正弦交流电流i=Imsin(wt+?),初相位为30°,当t=0时,t=1
A,则这个正弦交流电流的有效值是( )A。
A.0.5
B.1
C.1.414
D.1.732
[单项选择]( )不是止血的方法。
A. 手压法
B. 冰敷法
C. 加压包扎法
D. 止血带法
[单项选择] 第一篇Trying to Find a Parther
One of the most striking findings of a recent poll in the UK is that of the people inbterviewed,one in two believes that it is becoming more difficult to meet someone to start a family with.
Why are many finding it increasingly difficult to start and sustain intimate relationships Does modern life really make it harder to fall in love Or are we making it harder for ourselves
It is certainly the case today that contemporary couples benefit in different ways from relationships.Women no longer rely upon partners for economic security or status.A man doesn’t expect his spouse to be in sole charge of running his household and raising his children.
But perhaps the knowledge that we can live perfectly well without a partnership means that it takes much more to persuade people to abandon their independence.
In theory,finding a partner should be much simpler these days.Only a few generations ago,your choice of soulmate (心上人) was constrained b
A. “reduce”.
B. “shake”.
C. “maintain”.
D. “weaken”.
[多选题]以下有关气焊操作中左向焊和右向焊的说法正确的是( )
A.左向焊火焰指向未焊部分,起到预热作用
B.左向焊操作方便,易于掌握
C.右向焊火焰指向熔池并始终笼罩着已焊的焊缝金属,使熔池缓慢冷却
D.左向焊适于焊接厚度较大、熔点较高的焊件
[单选题]使用中的氧气瓶和乙炔气瓶应( )固定放置,氧气瓶和乙炔气瓶的距离不得小于5m;气瓶的放置地点不得靠近热源,应距明火10m以外。
A.水平
B.倾斜
C.并排
D.垂直
[单项选择]SLE有()。
A. 面部蝶形红斑
B. 雷诺现象
C. 两者均有
D. 两者均无
[多项选择]人性心理学认为人性的内在需要源于( )三种本能。
A. 个体保存、种族延续的本能
B. 探究本能
C. 安全本能
D. 依存本能
[判断题]两相交流伺服电动机功率较小,一般在1000W以下。
[多项选择]引起伤寒爆发流行的主要传播途径
A. 水源传染
B. 日常生活接触
C. 苍蝇传染
D. 蟑螂传播
E. 食物污染
[单项选择]
{{B}}Conversation
1{{/B}} |
A. To go to the school dining hall with the girl.
B. To eat the sandwich his mother has made for him.
C. To have lunch with the girl at the restaurant.
D. To drink a glass of water only.
[判断题]几个电阻的首尾依次相连,中间没有分支,只有一条电流通路,这种连接方式称为电阻的并联电路。(易)
A.正确
B.错误
[多选题]根据《中国南方电网有限责任公司电力安全工作规程》(Q/CSSG 510001-2015)9.5.1.2规定:调度下达命令和现场电气操作,严禁以下哪些情况发生?( )
A.带负荷拉(合)隔离开关
B.带接地刀闸(接地线)合断路器(隔离开关)
C.带电合(挂)接地刀闸(接地线)
D.误分(合)断路器
[多选题]整正轨距方法有( )
A.拉杆固定
B.垫板作业
C.更换轨距块
D.改锚螺栓道钉
E.拨正方向
[单选题]氧气、乙炔瓶在使用时的安全距离为()
A.
2米
B.
5米以上
C.
1米
[单项选择]The Supreme Court’s decisions on physician-assisted suicide carry important implications for how medicine seeks to relieve dying patients of pain and suffering.
Although it ruled that there is no constitutional right to physician-assisted suicide, the Court in effect supported the medical principle of "double effect", a centuries-old moral principle holding that an action having two effects—a good one that is intended and a harmful one that is foreseen—is permissible if the actor intends only the good effect.
Doctors have used that principle in recent years to justify using high doses of morphine to control terminally ill patients’ pain, even though increasing dosages will eventually kill the patient. Nancy Dubler, director of Montefiore Medical Center, contends that the principle will shield doctors who "until now have very, very strongly insisted that they could not give patients sufficient mediation to control their pain if that might hasten death. "
George Annas,
A. doctors used to increase drug dosages to control their patients’ pain
B. it is still illegal for doctors to help the dying end their lives
C. the Supreme Court strongly opposes physician-assisted suicide
D. patients have no constitutional right to commit suicide
[填空题]乘务组随车机械师按每 8 辆编组配备( )名随车机械师,且预备率符合定员标准要求。
[单选题]在路肩窄、路基高的线路和高度超过1.1米高的站台上调车作业时,必须( )上下。
A.A、以不超过10km/h速度
B.B、以不超过5km/h速度
C.C、停车
D.D、以不超过8km/h速度
[单选题]架空绝缘导线不应视为绝缘设备,作业人员不准直接接触或接近。架空绝缘线路与裸导线线路停电作业的安全要求相同。
A.正确
B.错误
C./
D./
E./
F./
[单选题]沉积岩划分为三大类,下列不属于沉积岩的是?()
A.碎屑岩
B.粘土岩
C.生物化学岩
D.生物物理岩
[简答题]882、司机发现制( )或制动系统未及时有效响应信息时,立即采取紧急制动方式停车。
[多选题]机动车下徒坡时错误的操作时:
A.不准空当或熄火滑行。
B.空挡滑行,但不熄火滑行。
C.为节约燃料可利用空挡滑行。
[填空题]如下程序声明了一个电话号码类PhoneNumber,重载了流插入运算符<<,以便于电话号码的输出。请将程序补充完整。
# include<iostream>
# include<iomanip>
# include<string>
using namespace std;
class PhoneNumber{
public:
void setNumber(string number) {this-->number = number;}
//重载流插入操作符
friend 【 】 (ostream &output,const PhoneNumber &num)
{ output<<num. number; return output; }
private:
string number;
};
int main( ) {
PhoneNumber phone;
phone. setNumber("8008100598");
cout<<"The phone number is:"<<phone<<endl;
return 0;
}