汽车罐车液相、气相出口管应设();泵出口管应设()和安全回流阀。
参考答案:过流阀和紧急切断阀;止回阀
五家耐火材料厂成型车间粉尘分散度测定结果如下表所示。
成型车间的粉尘分散度最高的工厂是()
A.工厂1
B.工厂2
C.工厂3
D.工厂4
E.工厂5
WebSQL is a SQL-like (6) language for extracting information from the web. Its capabilities for performing navigation of web (7) makes it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a (8) , all the pages that can be reached from a given URL through (9) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (10) Interface.
A.browsers
B.servers
C.hypertexts
D.clients