What of the followings are advantages of on-line shopping?

Some Internet addicts said their on-line usage was ______.

There are many people_________ only on-line activity is sending and receiving e-mails.

关于OPAC的正确表述是 。 A: Open Public Address Catalogue B: On-line Public Access Catalogue C: Open Professional Access Catalogue D: On-line Person Address Catalogue

Although on-line shopping has a lot of advantages, its (advantage) _______ are obvious.

‍关于OPAC最新定义，正确表述是：（ ）。‍ A: On-line Public Access Catalogue B: Open Public Address Catalogue C: Open Professional Access Catalogue D: On-line Person Address Catalogue

Because of its (convenient) ____, on-line shopping has become more and more popular.

According to the article, the function of the bulletin put out by the Competition Bureau was to ______. A: eliminate deceptive on-line advertising B: introduce the Competition Act C: clarify roles related to on-line advertising and marketing D: inform the Canadian public about deceptive marketing practices

According to the article, the function of the bulletin put out by the Competition Bureau was to. A: eliminate deceptive on-line advertising B: introduce the Competition Act C: clarify rules related to on-line advertising and marketing D: inform the Canadian public about deceptive marketing practices

___ shows Line 3; ___ shows Line 2; ____ shows Line 1.