13、How much baggage is a ticketed passenger allowed free of charge?

电子商务这一术语用来描述在因特网上运营的企业。(describe)

一旦病毒进入你的在线商用电脑, 它将以各种形式进行破坏。(once, wreak havoc)

开业当天并不完全算是巨大的成功。(roaring success)

钱会转到你的银行账户上。(transfer)

有些风险源于环境的变化。(arise from)

These programs can be ______ (integrate) with your existing software.

Firms are interested in E-commerce because, quite simply, it can help to increase profits. (71)[All the advantages of E-commerce for business entities can be summed in one statement: E-commerce can increase sales and decrease costs.]

For Companies: (a) It increases profits. (b) It increases sales. (c) (72)[Advertising can reach potential customers in every country in the world.] (d) (73)[A virtual community is formed, not in the physical world, but on the Internet.] (e) It decreases costs.

For Buyers: (a) Increases purchasing opportunities. (b) Provides competitive bid information. (c) Increases speed and accuracy of information. (d) Reduces costs. (e) A wider range of choices are available. (f) (74)[Some products such as software, audio clips(音频剪辑), or images, can be delivered via the Internet.] (g) Society derives benefits. (h) Electronic payment of tax refunds, public retirement, and welfare support costs less to issue. (i) Electronic payment is more secure and faster. (j) E-payments are easier to control than checks, which can help protect against fraud and theft losses. (k ) You can work from home. (l) It reduces commuter-costs and traffic jams. (m) (75)[It’s environmentally sound reduces pollution.] (n) Distance education has emerged.

This task requires your full ______ (concentrate).

Our victory is ______ (assure); nothing can stop us.

as follows