【判断题】城市轨道交通试车线一般选用50kg/m的钢轨。
【判断题】目前在国际贸易中,一般都采用象征性交货,即凭单交货、凭单付款。 ( )
【单选题】Finding her car stolen, _____. [ ]
A.
a policeman was asked to help
B.
the area was searched thoroughly
C.
it was looked for everywhere
D.
she hurried to a policeman
【单选题】下面为不正确的字符串赋值或赋初值方式是 ( )
A.
char*str;str="string";
B.
char str[7]={'s','t','r','i','n','g'};
C.
char str1[10];str1="string"; //str1为常量,代表str1首元素地址
D.
char strl[]="string",str2[ ]="12345678"; strcpy (str2,strl);