Sql server中,创建存储过程的片断如下:创建成功后,以下( )调用方式是正确的。 Create procedure procd_score @password int=60, @count int output AS select @count=count(*) from score where score<@passed A. execute proce_score @count int output B. declare @count int execute proc_score 70,@count output C. declare @count int output execute proc_score 70,@count; D. execute proc_score @passed=70,@count output