热门试题:
[单项选择]The experiment with the dove implied that ______.
A. birds should be taught to navigate
B. a dove that has been caged will not fly long distances
C. some birds cannot fly at night
D. some birds seem to follow the stars when they fly at night
[单选题]某溃疡病并发幽门梗阻病人,因反复呕吐入院,血气分析结果为:pH7.49,PaCO248 mmHg,HCO3—36mmol/L该病人应诊断为( )
A. 呼吸性碱中毒
B. 呼吸性酸中毒
C. 代谢性酸中毒
D. 代谢性碱中毒
E. 混合性酸碱中毒
[判断题]细胞激活后产生浆细胞,浆细胞可以产生免疫球蛋白。
[判断题]逐件、逐层向上重叠堆码,一件压一件的堆码方式称为纵横交错式。
[多选题]5.《细则》规定:使用复合钻具时,应配齐相应数量的( )。
A.闸板防喷器
B.环形防喷器
C.安装相应尺寸的闸板总成
D.配备相应尺寸的闸板体
E.配备相应尺寸的闸板压块
[单项选择]关于右心室梗死,错误的是()
A. Kussmaul’s征
B. V4导联ST段常抬高
C. 超声心动图有助于鉴别右心室梗死、心包积液与心脏压塞
D. 伴右心衰竭低血压时宜扩容治疗
E. 小剂量硝酸甘油引起显著低血压提示右心室梗死的可能
[单选题]李女士,患糖尿病3年,近日出现糖尿病酮症酸中毒,其呼吸特点为
A. 呼吸浅慢
B. 叹息样呼吸
C. 呼吸音响异常
D. 深而大的呼吸
E. 浮浅性呼吸
[单选题]发展党员,必须把()放在首位。( )
A.经济标准
B.道德标准
C.业务标准
D.政治标准
[判断题]离心泵密封质量不高会降低泵的工作效率。
A.正确
B.错误
[单选题]患者,男,40岁。乏力伴活动后心慌气促5个月,近来皮肤紫瘢。查体:贫血貌,浅表淋巴结无肿大,胸骨无压痛,肝脾肋缘下未触及。实验室检查结果:Hb60g/L,RBC2. 4 × 1012/L, WBC1.4x109/L,Plt9 ×109/L。
有关该类MDS的临床特点,错误的是
A.以贫血为主
B.可伴有脾肿大
C.感染易见
D.病情进展快
[单选题]如果自动喷水灭火系统未设固定的流量测量装置,则可通过在( )用便携式超声波流量计配合进行相关测试工作。
A.供水干管
B.水流指示器
C.消防水泵
D.控制阀
[判断题]有刀开关和熔断器的回路停电,应先取下熔断器,后拉开刀开关。送电操作顺序与此相反。
A.正确
B.错误
[简答题]请写出NJ01电客车与NJ03电客车在DDU图标显示上有哪些区别?
[单项选择]单边带接收机的保护电路中加入白炽灯的作用是()
A. 抑制大信号干扰
B. 抑制雷达波干扰
C. 抑制中频干扰
D. 抑制调频干扰
[单选题]患者,男,30岁,自服敌敌畏150ml,3小时后被送到急诊科,抢救无效死亡,其死亡原因是:( )
A.脑水肿
B.肺部感染
C.心脏骤停
D.中间综合征
E.呼吸衰竭
[判断题]( )高处作业人员在转移作业位置时不得失去安全保护。
A.正确
B.错误
[单项选择]年利率为12%,存款额为1000元,期限为一年,按一年4次按季利率计息,则一年后的本利和为 ( )元。
A. 1120.00
B. 1125.51
C. 1126.83
D. 1130.93
[判断题]相对误差的大小表示测量结果的准确程度。相对误差的绝对值越大,说明测量结果越准确。
A.正确
B.错误
[单选题] 直接从事带电作业时,必须( ),防止发生触电。
A. 有人监护
B. 穿绝缘鞋和戴绝缘手套
C. 戴绝缘手套
[多选题]CRH380B型动车组观光区设置了( )。
A.更衣柜
B.电控雾化玻璃
C.垃圾箱
D.电视
[判断题]企业所得税的纳税人以融资租赁方式从出租方取得的固定资产,其租金支出可根据受益时间均匀扣除。 ( )
[判断题]运送现金、实物等重要物品,必须由押运人员两人以上武装押运(含司机),不准委托他人捎带。
A.正确
B.错误
[多选题]伤口湿性愈合理论指出给伤口提供一个什么样的环境利于伤口的愈合:
A.湿润
B.低氧
C.高氧
D.微酸
E.微碱
F.洁净
[判断题]根据拧紧力矩计算公式,为达到所需要的螺栓预紧力,在无润滑情况下的拧紧力矩要比有
润滑时大。
A.正确
B.错误
[判断题] 重大偏差和细微偏差均影响投标文件的有效性。
A.正确
B.错误
[单选题]法规即是要人们( )的规则、规范。
A.完全执行
B.认真执行
C.坚决执行
D.强制执行
[单项选择]血瘀腹痛的证候特点是()
A. 遇寒痛甚,得温痛减
B. 腹痛拒按,胀满不舒
C. 腹痛畏寒,喜温喜按
D. 腹痛胀满,攻窜不定
E. t腹部刺痛,固定不移
[多选题]食品生产者对变质、超过保质期或者回收的食品应当采取下列哪些措施( )。
A.显着标示
B.单独存放在有明确标志的场所
C.及时采取无害化处理、销毁
D.如实记录
[单项选择]数据库操作时服务器突然掉电,当重新启动后,您如何恢复已经完成但还没把数据写入硬盘的事务,以及正在进行一半的事务()
A. 运行ROLL FORWARD ALL TRANSACTION
B. 不用。SQL Server2000自动恢复,即通过日志恢复所有已经完成但还没把数据写入硬盘的事务到硬盘,并撤消正在进行一半的事务。
C. 先备份事务日志,再将数据库恢复到上一完全数据库备份,再把刚备份的事务日志恢复到当前数据库的日志中。
D. 没有办法。只能使用数据库以前的备份。
[单选题]男性,29岁,饱餐后突然发生上腹痛,蔓延至全腹8小时,腹痛呈持续性,体检:舟状腹,全腹明显压痛,反跳痛,肝浊音界缩小,移动性浊音阳性,肠音消失。应考虑为
A.急性胆囊穿孔腹膜炎
B.消化性溃疡穿孔腹膜炎
C.急性阑尾穿孔腹膜炎
D.重症胰腺炎并感染
E.急性肠扭转
[单选题]道岔表示器夜间显示( )灯光,表示道岔位置开通直向。
A.月白色
B.黄色
C.紫色
D.绿色
[单选题]压缩机是把电动机的( )转化为气体的( )的机械。
A.机械能 、动能
B.动能 、机械能
C.静压能、动能
D.动能、静压能
[填空题]中间站有调车作业的列车,列车进站停车后,司机应使车列处于( )状态。
[填空题] Traditional Americans think marriage is a serious business. It begins with (36)______. A young man asks the father of his sweetheart for (37)______to marry his daughter. If the father agrees, the man later (38)______ to her. The man usually. gives his fiancé a (39)______ring as a (40)______of their engagement.
Although most weddings follow long-held traditions, there’’s still room for American (41)______. For example, the usual place for a wedding is in a (42)______. But some people get married outdoors in a scenic spot. The (43)______may invite hundreds of people or just a few close friends. But some things rarely change. (44)____________.
As the ceremony begins, the groom and his attendants stand with the minister, facing the congregation. (45)____________. They give each other a gold ring to symbolize their marriage commitment.
At the wedding reception, the bride and groom greet their guests. (46)____________. Tradition says that the one who catches the bouqu
[单项选择]You can use your Business Telecard International at any card phone in the United Kingdom. Here is some information about making international phone calls.
You can now phone almost any country in the world, although in some cases you can only call big cities. When you cannot make direct dialing calls, you can ask the international operator to help you. This is more expensive and takes more time, but it may be helpful if you want to speak to a particular person and no one else, in this case you should ask for a "person-to-person" call. Even more expensive is a reverse charge call where the person who receives the call pays. If the international line is busy, you can reserve(留下) a call, explain the number you want and the operator will call you back when the line is free.
You can save money by calling outside office hours, for example, early in the morning, late at night, and on Sundays. Remember that the time may be different in the country that you are calling. International t
A. Ask the operator to call you back later.
B. Make a "person-to-person" call.
C. Call back outside office hours.
D. Wait and call again when the line is free.
[单选题]剖分式薄壁轴瓦,在自然状态下应使轴瓦的剖分面比轴承座(或盖)的止口面()。
A.稍低一些
B.等高平齐
C.稍高一些
D.等高或稍低