顶点为(-2,-5)且过点(1,-14)的抛物线的解析式为( )。
—When you off to Guangzhou?
—Next Thursday evening. [ ]
A. are; going
B. would; go
C. are; go
D. do; go
Lc4A3152起重臂、钢丝绳等与10kV高压架空输电线路间的允许最小距离为()。
A.4m;
B.3m;
C.2m;
D.1.5m。