题目内容

轮机轴瓦预紧力有何作用？

查看答案

搜索结果不匹配？点我反馈

更多问题

Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated by the servlet to the JSP；furthermore， that JSP uses a custom tag and must also process this information. This information mustNOT be accessible to any other servlet， JSP or session in the webapp. How can you accomplish this goal？（）

A. Store the data in a public instance variable in the servlet.
B. Add an attribute to the request object before using the request dispatcher.
C. Add an attribute to the context object before using the request dispatcher.
D. This CANNOT be done as the tag handler has no means to extract this data.

查看答案

基因型方差与表型方差之比，叫（）遗传力。

查看答案

“礼之用，和为贵”出自《论语・学而》。

A. 正确
B. 错误

查看答案

《环境保护税法》规定，环境保护税的征税对象为应税污染物，是指《环境保护税税目税额表》《应税污染物和当量值表》规定的大气污染物、水污染物、固体废物。( )

A. 正确
B. 错误

查看答案