单项选择题


Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your ANSWER SHEET.
With the rapid spread of the Internet every- where in the world, the (31) number of users, one of the most exciting developments on the Internet is E-commerce— (32) commerce. E-commerce has two forms, (33) business- to-business, or B-to-B, and business-to-consumer, or B-to-C. B-to-C was the first of these developments. It grew (34) from the first days when people started to buy things in their homes without going to a shop. First came “catalogue shopping” (35) you choose what you want from a catalogue (36) pictures and other details of everything that is (37) sale. You then send an order with a check by post and the things you have chosen (38) to your home. Then (39) “television shopping”, where (40) a catalogue, the items for sale are shown or (41) on television. (42) , the customer sends a check and the item is delivered to his or her home. Online shopping is the (43) development, where the “catalogue” is (44) on the Inter- net, combining the advantages of both the book catalogue and the television and indeed adding more (45) . The customer (46) his choice but rather than sending an order and a (47) through the post, he places the order and pays for it using his credit card, all using (48) .
Many people worry about giving details of their credit card over the Internet and the danger that it may be deceitfully used. (49) , the general view is that with modem systems of secure encoding the dangers of the misuse of credit cards is (50) greater in a shop, garage or restaurant than using it for shopping on the Internet.

A.naturally
B.truly
C.really
D.actually