题目内容

手势的原则:首先,要简约明快,其次要()。最后要因人而异。

查看答案
更多问题

下列不属于HDLC帧类型的是()

A. 信息帧
B. 管理帧
C. 监控帧
D. 无编号帧

根据《危险化学品安全管理条例》(中华人民共和国国务院令第591号)规定,危险化学品经营企业不得向未经许可从事危险化学品生产、经营活动的企业采购危险化学品,不得经营没有化学品()或者化学品安全标签的危险化学品。

A. 安全技术说明书
B. 产品说明书
C. 技术说明书

受弯曲和加工过的部位都会产生加工硬化

A. 正确
B. 错误

Which statement is true regarding synonyms?()

A. Synonyms can be created only for a table
B. Synonyms are used to reference only those tables that are owned by another user
C. A public synonym and a private synonym can exist with the same name for the same table
D. The DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid

答案查题题库