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多项选择题Which two are true concerning the objects available to developers creating tag files？（）

A、The session object must be declared explicitly.

B、The request and response objects are available implicitly.

C、The output stream is available through the implicit outStream object.

D、The servlet context is available through the implicit servletContext object.

E、The JspContext for the tag file is available through the implicit jspContext object.

  • B,E

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