题目
A.MySQL数据库一旦安装成功,所有数据库中的数据表的字符集也就确定了,建表时是不可以再指定的
B.在MySQL中,如果添加的数据不符合数据类型或约束条件,系统将报错
C.一个数据表中只可以有一个字段可以设置主键约束
D.自增字段的数据类型可以是字符型或数值型
第6题
A.Thread myThread = new Thread(); my Thread.Start();
B.Thread myThread = new Thread(new ThreadStart(Method)); myThread.Start();
C.Thread myThread = new Thread(new ThreadStart(Method)); myThread.Run();
D.Thread myThread = new Thread(); myThread.Run ();
第7题
A.Thread myThread = new Thread(); my Thread. Start();
B.Thread myThread = new Thread(new ThreadStart(Method));myThread.Start();
C.Thread myThread = new Thread(new ThreadStart(Method)); myThread.Run();
D.Thread myThread = new Thread(); myThread.Run ();
第8题
A.I was not born with knowledge. I love the ancients.
B.I am not one who was born in the possession of knowledge; I am one who is fond of antiquity.
C.I was not born learned. I simply love ancient things.
D.I for my part am not one of those who have knowledge. I am simply one who loves the past.
第9题
A.I was not born with knowledge. I love the ancients.
B.I am not one who was born in the possession of knowledge; I am one who is fond of antiquity.
C.I was not born learned. I simply love ancient things.
D.I for my part am not one of those who have knowledge. I am simply one who loves the past.
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