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【单选题】
下列说法中正确的是 [ ]A.
金属材料不能制成复合材料
B.
酚醛树脂和聚氯乙烯都是热固性塑料
C.
锦纶丝接近火焰时先蜷缩，燃烧时有烧焦毛发的臭味，灰烬为有光泽的硬块，能压成粉末
D.
复合材料一般具有强度高、质量轻、耐高温、耐腐蚀等 优异性能，其综合性能超过了单一材料
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【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.
【单选题】What does the e-customer want?
A.
Information about order and fulfillment.
B.
Information about similar products.
【单选题】What does an E.coli genomic library contain?
A.
Recombinant clones of genes from E.coli genome
B.
Just desired gene from E. coli
C.
Expressed genes
D.
Protein products
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