单项选择题
Clearly, ____ object of the game is to improve ____ chi...
单项选择题Clearly, ____ object of the game is to improve ____ children's math skills.
单位和个人可以未经允许，进入计算机信息网络或者使用计算机信息网络资源。A．正确 B．错误
不定项选择单位和个人可以未经允许，进入计算机信息网络或者使用计算机信息网络资源。
David has decided ____ football at the end of this seas...
单项选择题David has decided ____ football at the end of this season.
