下载APP
举一反三
【单选题】$a = array( 'a', 3 => 'b', 1 => 'c', 'd'); 以下如何访问 d 的值？
A.
$ a [ 0 ]
B.
$ a [ 1 ]
C.
$ a [ 2 ]
D.
$ a [ 3 ]
E.
$ a [ 4 ]
【单选题】Ladies and gentlemen, welcome to Dalian, a famous summer resort ( 避暑胜地 ) and one of the best tourist cities in China. With clear sky, green mountains, blue seas, fine beaches, clean streets and lovely...
A.
comes in the best season.
B.
is here to join more tourists
C.
may not stand the heat here.
D.
is traveling back home.
【多选题】访问WAIS的方法有（）。
A.
直接访问WAIS站点
B.
使用本地客户机软件
C.
使用gopher访问WAIS服务器
D.
使用telnet与拥有WAIS客户机程序的系统联机