【单选题】变电一次接线图中的符号为 表示是 ( )符号
【判断题】Christopher Wren was a famous British architect of 17th century. He built over 50 new churches in London including St. Paul’s Cathedral.
【单选题】输入“12345,xyz”,下列程序的输出结果是( )。 #include int main() { int a; char c; scanf("%3d%3c",&a,&c); printf("%d,%c",a,c); return 0; }
【单选题】按照GB4728规定,如图所示图形符号代表的元件名称是()。
【简答题】电源避雷器(SPD)的标称放电电流和最大放电电流的含义和表示符号是什?标称放电电流和最大放电电流各行业有什么关系?
【单选题】Why was it necessary to rebuild London quickly?
A.
Sir Christopher Wren was an influential man.
B.
People came from all over England to help with the project.
C.
England was a very wealthy country.
【多选题】有关避雷器的安装,下列做法中正确的是()。
B.
管型避雷器在多污秽地区倾斜安装时,应增大倾斜角度
C.
磁吹阀型避雷器组装时,其上下节位置应符合产品出厂的编号
【单选题】输入“12345,xyz”,下列程序的输出结果是( )。 #include void main() { int a; char c; scanf("%3d%c",&a,&c); printf("%d,%c",a,c); }