【单选题】下面代码的输出结果是( )。float x=30.0; printf("x=%f",x);
【单选题】欲在1:2000地形图上选出一条坡度不超过5%的公路线,若该图的等高距为1米在图上线路经过相邻两条等高线间的最小平距为
【单选题】关于气体钢瓶的正确使用和操作,以下哪种说法不正确( )
A.
不可把气瓶内气体用光,以防重新充气时发生危险
D.
检查减压阀是否关紧,方法是逆时针旋转调压手柄至螺杆松动为止
【简答题】下面代码的输出结果是 >>> x = "Happy Birthday to you!" >>> x * 3A. Happy Birthday to you! B. 系统报错 C. Happy Birthday to you!
Happy Birthday to you!
Happy Birthday to you! D. Happy Birthday to you!Happy Birthday t...
【单选题】下面代码的输出结果是 >>>x = "Happy Birthday to you!" >>>x * 3
B.
Happy Birthday to you! Happy Birthday to you! Happy Birthday to you!
C.
Happy Birthday to you! Happy Birthday to you! Happy Birthday to you!
D.
Happy Birthday to you!
【单选题】下面代码的输出结果是( )。int x=30; printf("x=%d",x);