肾结石的特征性形状是（）-我要搜题网

[单选题]呼吸机的可拆卸部分应多长时间更换消毒( )
A.12~24h
B.24~48h
C.48~72h
D.72~96h
E.一周

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[单选题]油浸变压器着火时,迅速切断起火变压器电源,使用(____)或沙子灭火。
A. 泡沫灭火器
B. 干粉灭火器
C. 二氧化碳灭火器
D. 水

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[单选题]预防老年人噎食/呛食的措施不包括( )
A.尽量采取坐位或半坐卧位为老人喂水喂饭
B.不在老年人情绪不稳定时喂水喂饭
C.选择软烂食物,汁液不要太多
D.限制饮水
E.进行口腔体操,饭前准备活动

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[单选题]各种仪表均应整齐存放在仪表柜和仪表箱内，由（）定期清洁维护，做好防尘防潮工作。
A. 厂家
B.使用人员
C. 专人
D. 维护人员

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[单选题]下面有关团结互助促进事业发展的论述错误的是()。
A."同行是冤家”
B.团结互助能菅造人际和谐氛围
C.团结互助能増强企业凝聚力
D.团结互助能使职工之间的关系和谐

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[单项选择]As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the (67) of rushing through life, being on the go from morning till night, it is hard to (68) down. But relaxation is essential for a (69) mind and body.
Stress is natural part of everyday life and there is no way to (70) it. In fact, it is not the bad thing it is often (71) to be. A certain amount of stress is vital to provide (72) and give purpose to life. It is only (73) . the stress gets out of control that it can lead to (74) performance and iii health.
The amount of stress arsons can withstand depends very much (75) the individual. Some people are not afraid of stress, and (76) characters are obviously prime material for managerial responsibilities. Others lose (77) at the first signs of unusual difficulties. When (78) to stress, in whatever form, we react both chem

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[单项选择]某生产企业2008年销售一栋8年前建造的办公楼，取得销售收入1200万元。该办公楼原值700万元，已计提折旧400万元。经房地产评估机构评估，该办公楼的重置成本为1400万元，成新度折扣率为五成，销售时缴纳各种税费共计72万元。该生产企业销售办公楼应缴纳土地增值税（　）
A. 128.4万元
B. 132.6万元
C. 146.8万元
D. 171.2万元

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[简答题]已知工业纯铜的屈服强度σ_S=70MPa，其晶粒大小为N_A=18个/mm²，当N_A=4025个/mm²时，σ_S=95MPa。试计算N_A=260个/mm²时的σ_S。

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[单选题]有害、有毒物质的发生源，应布置在工作地点机械通风或自然通风的( )。
A.上风侧
B.下风侧
C.前面

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[单项选择]按照领馆特权与豁免的规定，领馆档案及文件不得侵犯适用于下列哪种情形
A. 只在领馆内
B. 只在领事辖区内
C. 只在外交邮差手中或外交邮袋里
D. 无论何时何地

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[单项选择]遗传病中影响最大的是（）。
A. 染色体疾病
B. 多基因遗传病
C. 单基因遗传病
D. 性染色体疾病

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[多选题]现代智慧供应链体系具有如下特点（）。
A.以资产全寿命周期管理为主线
B.以物资业务链为体系基础，以内外协同为系统关键，以运营中心为运作核心
C.具有数字化、网络化、智能化的特征
D.有助于实现全景信息共享、业务快速定位

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[判断题][T]A-B-B-001 4 1 2
轻型车辆及小车应放置在固定的安全地点不需要加锁，使用前应进行检查，确认状态良好时方可上道。
A.正确
B.错误

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[判断题]建筑施工安全网的搭设和拆除由专业架子工进行。
A.正确
B.错误

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[单项选择]When Marine Lt. Alan Zarracina finally did the splits after months of struggling with the difficult pose in yoga class, the limber women around him applauded.
Zarracina, a 24-year-old Naval Academy graduate and flight student, admits he would have a hard time explaining the scene to other Marines. Each class ends with a chant for peace. Then, instructor Nancy La Nasa hands students incense sticks as a gift for their 90 minutes of back bends, shoulder stands and other challenging positions. Zarracina has tried to drag some of his military friends to class, but they make fun of him. "It’s not necessarily considered masculine," he said.
Still, the popular classes, based on ancient Hindu practices of meditation through controlled breathing, balancing and stretching, are catching on in military circles as a way to improve flexibility, balance and concentration. A former Navy SEAL told Zarracina about the class.
The August edition of Fit Yoga, the nation’s second-largest yoga
A. yoga is a peaceful meditation process.
B. yoga is thought to be a little feminine.
C. only women would attend a yoga class.
D. Marine soldiers hate to chant for peace.

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[单选题]在压力加工过程中,靠拉力作用使金属产生变形的是( )。
A.轧制
B.挤压
C.拔制

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[多选题]在5级及以上的大风以及（）沙尘暴等恶劣天气下，应停止露天高处作业。
A.暴雨
B.雷电
C.冰雹
D.大雾

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[简答题]试分析创新教学方法是对教学方法的整合与优化。

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[单选题]将营运嫌疑车辆截停后,执法警察首先要做的是()。
A.控制司机
B.向乘客解释
C.将车包围
D.上车检查

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[多选题]属于燃气泄漏的引爆源的是( )。( )
A.做饭以及抽烟等涉及的明火。
B.电器启停等产生的能量源。
C.人体静电、铁质鞋钉与地面摩擦以及使用铁器碰撞等
产生的火星。
D.高温

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[名词解释]利尿通淋