第1题
Yahoo, eBay, Amazon, CNN, Buy, eTrade and zNet are ______.
A.stores on the web
B.large commercial web sites
C.small commercial web sites
D.public government web sites
第2题
The web sites can be used to______books that have long been out of print.
A.set back
B.track down
C.leave behind
D.pass by
第3题
A、network structure
B、communication protocols
C、Web standards
D、security systems
第4题
A、The Monster House
B、Prince of Egypt
C、Beauty and Beast
D、Charlotte's Web
第7题
A.Times are different, but the historic sites, I presume, must have remained the sam
B.Even though times are different, I think the historic sites should be the sam
C.Since times are different, but the historic sites, I presume, should be the sam
D.Since times are different, I think the historic sites must have remained the same
第10题
Suggest a procedure for measuring the exchange capacity (ion exchange sites per unit mass or column of the resin) of a cation exchange resin using standard solutions of HCland NaOH and any other reagents you wish.
第11题
A.webpage
B.database
C.attachment
D.password