【判断题】用一根4对双绞线可以同时传输语音和数据信号。 ( )
【单选题】下列刚性防水屋面做法中哪一项是错误的
A.
刚性防水屋面主要适用于防水等级为Ⅲ级的屋面防水
B.
防水层为40mm厚C20细石混凝土,内配双向φ4钢筋网片,间距150mm,分格缝间距小于6m
D.
现浇钢筋混凝土屋面板上做2%的水泥粗砂焦渣找坡层
【简答题】4.
Mike is fed up with his current job, and he is thinking about changing a job.A. Right B. Wrong C. Not mentioned
【单选题】Mike is fed up with his current job, and he is thinking about changing a job.
【简答题】颗粒形状主要由粉末的( )决定,同时也与物质的分子或原子排列的结晶几何学因素有关。
【简答题】下列程序可以计算某年某月有几天,以及闰年与平年的2月天数不同。判别闰年的条件:能被4整除但不能被100整除的年是软年,或者能被400整除的年也是闰年。请在程序的下划线处填入正确的内容,使程序得到正确的结果。 #include int main( ) { int yy,mm,days; printf("input year and month:"); scanf("%d %d",&yy,...
【单选题】Mike is fed up with his current job, and he is thinking about changing a job.
【简答题】用一根4对双绞线可以同时传输语音和数据信号吗?