在ADO.NET中,已知变量sqlCom是一个SqlCommand对象,则下列代码运行时将出现异常的是(选一项) SqlDataReader reader = sqlCom.ExecuteReader(); //1 reader.Read(); //2 reader.Close(); //3 reader.Read(); //4

下列方法中返回值类型为int的有（）。 A: InputStream的read（）方法 B: InputStream的read（byte[]）方法 C: Reader的read（）（正确答案） D: Reader的read（char[]）

You must pay attention to ________ the works of Lu Xun. A: read B: reader C: reading D: be read

Because I’m good at____ as well as making judgments. A: read B: to read C: reading D: reader

中国大学MOOC: A bar code reader is an input ______ to read the information of bar codes.

A _____ often reads newspapers and magazines. A: reader B: reador C: read D: reads

A good introduction does not give the reader an idea of what is going to read in the rest of the essay.

A bar code reader is an input ______ to read the information of bar codes. A: device B: term C: simulation D: process

对数据库libinfo中数据表reader施加表级读锁的语句是（） A: LOCKreader READ; B: LOCKTABLESreader WRITE; C: LOCKTABLESreader READ; D: LOCKreader WRITE;

If a book has seven or more new words on each page, a reader who wants to practice reading speed ______ . A: will probably drop it B: will probably read it very fast C: may study it very carefully D: may read it with a dictionary