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【多选题】
初次应答的特点是A.
抗体产生较慢
B.
抗体维持时间短
C.
抗体效价不高
D.
抗体种类以lgA为主
E.
抗体种类以IgG为主
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反馈参考答案：
举一反三
【多选题】Certkiller .com's e-Commerce Web application contains a page named Products.aspx that uses data source and data-bound server controls. Customers use the server controls to search for products. The Pro...
A.
Move the Products.aspx page to the App_Code folder.
B.
Create a code-behind file for the Products.aspx page.
C.
Rename the Products.aspx page to Products.ascx.
D.
Remove all server controls from the Products.aspx page.
E.
Replace the Page directive with a Control directive.
【简答题】请听下面一段对话，回答第1至3题。 1. What does the man mainly do on the Internet? [ ] A. He checks his e-mails. B. He finds products and components. C. He surfs the net. 2. What's the man's opinion about the Inte...
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