Directions: In this section you will hear a recorded short passage. The passage is printed the test paper. but with some words or phrases missing. The passage will be read three times. The first reading is for you to get the general idea. During the second reading, you are required to write down the missing words or phrases according to what you hear in order of numbered blanks. The third reading is for you to check your answer. Now the passage will begin. The networks that support electronic trade can 1. _________ to all the company's activities, including marketing and sales, purchases and logistics(物流), production, 2. _______ and engineering. The effectiveness of e-commerce reaches its full maturity when several of the 3._________operations are integrated with it: Information circulates from the sales 4.________ to those of purchasing and production. Information concerning sales is shared instantaneously(即刻的,瞬间的)with wholesalers, delivery departments, manufacturers, originators and even raw materials suppliers. The security of the 5.______ is ensured by the use of a protected payment server.