题目: 国内的商用域名一般以.sh.cn结尾。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0202/0cf4c34d682d664bafa317dff2af30af.html 下面是错误答案,用来干扰机器的。参考答案:A, B, C
题型:选择题 The first edition ____ in 1955 and ____ a best seller ever since.A. was published; had been B. had been published; had been C. has been published; has been D. was published; has been 查看答案
题型:问答题 (2)若杆与环保持相对静止,在空中沿AB方向水平向右做匀加速直线运动,此时环恰好悬于A端的正下方,如图乙所示。①求此状态下杆的加速度大小a;②为保持这种状态需在杆上施加一个多大的外力,方向如何? 查看答案
题型:单项选择题 案例分析题 某简支在砖墙上的现浇钢筋混凝土平板(见下图),板厚h=100mm,as=20mm。若混凝土强度等级采用C25,纵向受拉钢筋采用HRB335热轧钢筋。跨中最大弯矩设计值M=7.66kN·m,则As接近于()mm2。A.190.5B.200.0C.337.2D.1745.3 查看答案