锥螺纹连接特点是接速度快,对中性好,工期短,安全、工艺简单、连接质量好,受气候影响大,适应性强。()
参考答案:错
WAP uses (1) which includes the Handheld Device Markup Language (HDML) developed by Phone.com. WML can also trace its roots to eXtensible Markup Language (XML). A markup language is a way of adding information to your (2) that tells the device receiving the content what to do with it. The best known markup language is Hypertext Markup Language. (3) HTML, WML is considered a meta language. Basically, this means that in addition to providing predefined (4) , WML lets you design your own markup language (5) . WAP also allows the use of standard Internet protocols such as UDP, IP and XML.
4()
A.tags
B.certificates
C.messages
D.authentication codes
青主于二,三十年代出版《乐话》,()两本音乐专著.