下列营养物质不需要消化能够直接被吸收的是哪一种
A. 蛋白质protein
B. 糖sucrose
C. 葡萄糖glucose
D. 淀粉starch
The key developments of Web ________ were the creation of websites and the commercialization of the web.
A. 1.0
B. 2.0
C. 3.0
D. 4.0
________ are an example of harnessing collective intelligence.
A. Mashups
B. Tags
C. Web services
D. Wikis
________ feature remixable applications and data.
A. Mashups
B. Tags
C. Web services
D. Wikis