同一长度的压杆,截面积及材料均相同,仅两端支承条件不同:①两端固定;②一端固定,一端

题型:单项选择题

问题:

同一长度的压杆,截面积及材料均相同,仅两端支承条件不同:①两端固定;②一端固定,一端铰支;③两端铰支;④一端固定,一端自由;则杆的临界力从大到小排列的是()。

A.①②③④

B.④③②①

C.①③②④

D.④①③②

考点:建筑工程(一建)建筑工程综合练习建筑工程综合练习题库
题型:单项选择题
阅读下面短文,把A-D 四个选项填在空白处(1-4),并完成第5题。
     Qu yuan, an official and a famous poet lived about 2,000 years ago. As a kind, wise and patriotic
(爱国的) man, he was loved by the common people (百姓). 1.             
     When people heard that Qu threw himself in the Miluo River, they were very sad and went there
quickly in order to save his life. 2.             In the Chinese culture, dragon means power and authority
(权威), so fishermen used dragon boats to scare the fish away from Qu's body. They also threw Zong Zi,
or rice dumplings, into the water to feed the fish. 3.            But they were too late. Qu Yuan died. 
     From then on, people hold Dragon Boat (龙舟) races, eat Zong Zi on the anniversary (纪念日) of
Qu Yuan's death: the fifth day of the fifth lunar (农历的) month. 4.            
A. They hoped that when the fishes were full, they would keep away from Qu yuan.
B. A lot of fishermen rushed out in long dragon-shaped boats.
C. Qu Yuan's life was sad and he killed himself by jumping into the Miluo River.
5. What's the best title for the Passage?
[ ]
A. A story of Qu Yuan
B. Qu yuan's poems
C. The coming of Dragon Boat race and Zong Zi eating
D. A festival
题型:单项选择题

骨质疏松患者发生骨折的最常见的部位()

A.椎体

B.髋

C.前臂远端

D.骨盆

E.肱骨

题型:单项选择题

患者男,42岁。因“反复心前区疼痛2年,伴气短6个月”来诊。既往史无特殊。查体:T36.5℃,P95次/min,R28次/min,BP108/65mmHg。口唇无发绀,颈静脉怒张。HR95次/min,律不齐,偶有期前收缩,肺动脉瓣听诊区第二心音增强,胸骨右缘第3肋间可闻及持续的机械性杂音。双下肢轻度水肿。

需要在体外循环下修复瘘孔的情况有(提示经治疗1周后患者症状有所缓解,准备行手术治疗。)()

A.行瘘口切线缝合术有可能损伤血管壁引起大出血者

B.难于显露的瘘口

C.冠状动脉有明显病变须同期行主动脉-冠状动脉旁路移植者

D.合并心内畸形须同期手术矫正者

E.多发性瘘须经心腔、肺动脉或冠状动脉径路修补瘘口者

F.冠状动脉分支瘘或冠状动脉主干终末支瘘

题型:单项选择题

引发一级操作风险损失的原因包括()。

A.信息科技系统事件、内部欺诈事件、外部欺诈事件

B.信息科技系统、经营活动、人员

C.流程、人员、经营活动

D.信息科技系统、人员、环境

题型:单项选择题

受()的限制,在扑救隧道火灾通信联络得不到保障。

A、建筑结构

B、建筑形式

C、建筑长度

D、建筑材料

更多题库