适用于含纤维、微小固体颗料等介质的阀是()。A.B. C. D.
A. 蝶阀
B. 旋塞阀
C. 球阀
D. 节流阀
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阀门Z944T-1,DN500代表的连接方式是( )。
A. 法兰连接
B. 焊接连接
C. 热熔连接
D. 螺纹连接
What is advertising?Advertising is a means of _________ with the users of a product or service.Advertisements are messages paid for by those who send them and are intended to ______ or ________ people who receive them.
What are the purposes of advertising?-Make customers _______ of your product or service.-Convince customersthat your company's product or service is right for their_________ .-Create a _________ for your products or services.-Enhance the _______ of your company.
There are four types of advertising in terms of media.They are _________ advertising, _________advertising, ________advertising and _________advertising.