纵向水平杆的对接扣件应交错布置:两根相邻纵向水平杆的接头宜设置在同步或同跨内;不同步或不同跨两个相邻接头在水平方向错开的距离不应小于500mm。()
参考答案:错
肾癌血尿特点是:
A.镜下血尿
B.终末血尿
C.全程肉眼血尿,终末加重
D.全血尿伴有血块
E.无痛性间歇性肉眼全程血尿
What is the function of internet to the logistics? ()
A. To direct the operation
B. To help the market development, operation and management
C. To guide the mobile equipment, like truck and ship
D. To speed up the process