抗生素残留对人造成的主要危害有哪些？

The No. 6 Middle School is not far _  __ his home.   [ ]

A. to    

B. from    

C. with      

D. at

在正确合理的工程设计的前提下，建设工程质量不合格主要归结为()。

A．投入的施工生产要素质量不合格以及工序操作质量不合格

B．工序操作质量不合格以及施工作业质量不合格

C．投入的施工生产要素质量不合格以及已完施工产品质量检验不合格

D．投入的施工生产要素质量不合格和施工作业质量不合格

在VFP中，经过连编的应用程序，用户可以脱离VFP的环境运行。

WAP uses (71) , 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 (72) that tells the device receiving the content what to do with it. The best known markup language is Hypertext Markup Language. (73) HTML, WML is considered a meta language. Basically, this means that in addition to providing predefined (74) , WML lets you design your own markup language (75) . WAP also allows the use of standard Internet protocols such as UDP, IP and XML.

（73）处填（）。

A．Usable

B．Able

C．Unlike

D．Like

如何开通、取消智能秘书业务？