髋关节脱位根据股骨头移位的情况,可分为()。
A.1种
B.2种
C.3种
D.4种
E.5种
参考答案:C
根据句意和所给首字母完成句子。
1. The policeman asked to see his driving l .
2. —I can walk home.
—Don't be s . It's much too far!
3. Following the national news we have the l news and weather.
4. The i of washing one's hands before meals is that it prevents infection.
5. I'd like to have my ears p so that I can wear earrings.
下列关于字段属性的默认值的设置说法,错误的是( )。
A.默认值类型必须与字段的数据类型相匹配
B.在默认值设置时,输入文本不需要加引号,系统会自动加上引号
C.设置默认值后,用户只能使用默认值
D.可以使用Access的表达式来定义默认值