1.  >>  高等继续教育 / 混凝土结构理论
 高等继续教育 / 混凝土结构理论
正确率:100%

题型描述: 单选题
对于正截面受弯构件,下列说法正确的是
A.截面配筋率越大,构件的承载力和延性越好
B.双筋矩形因配有受压钢筋,因此截面不会出现超筋破坏
C.双筋矩形截面中,受压钢筋增强了构件的承载力,但降低了构件的延性
D.构件为适筋梁时,混凝土强度对受弯构件承载力影响比钢筋强度小的多
 参考答案:
 佳题速递:
  • 1[写作题] Directions: The following passage is incomplete with one body paragraph missing. Study the following passage carefully and write a paragraph of about 100 words. Make sure that the tone and vocabulary you use are in unity with the passage provided To Change or Not to Change? In the modern workplace there is no longer the attitude that “a job is for life.”Nowadays, many people take the option to change jobs, while others prefer not to. In my opinion, there are both good and bad points of the above attitudes. One of the main benefits of staying in one job is security.  Changing an employer often means a period of instability, where one may have to think about moving house, or temporarily losing a steady source of income.  Staying in one job means these problems are avoided. Another benefit of not changing an occupation is that one is able to gain a lot of experience and expertise in his specific profession, thus enhancing job security. One’s company may recognize his loyalty and reward his service. On the other hand, those who often change jobs may be seen as unreliable and lacking in experience; thus employers might be reluctant to hire and invest training in them. Overall, it can be said that the disadvantages of changing jobs are the advantages of staying put, and vice versa. In my opinion, changing jobs every once in a while is of more benefit.河南理工大学
  • 数字证书不包含( ) 网络安全技术
  • 中央银行买卖证券,可以调节货币供求影响经济。卖出证券时,可以增加市场货币量;买进证券时,可以减少市场货币量。 财政与金融
  • 衡量培训效果最常用的经济指标是(       )。  人力资源开发
  • 被继承人所欠的税款和债务应当( )清偿 婚姻法学
  • 等比变量(比率变量) 既有相等单位,又有绝对零点,能够进行加减乘除运算。 (    ) 教育科研方法