题型：问答题 简答题 完形填空。 My friend John is a university student. Last year he went to Japan and stayed there for two 1 . I was 2 that John could stay there for so long, because he was quite poor. "How did you get so much 3 , John?" I asked, "I thought you could only stay in Japan for two weeks." "It was easy," John answered. "I got a job in Japan." "A job? 4 ?" "I gave English lessons 5 a shopkeeper. We became good friends." "But you 6 a teacher!" Mr. Tanaka, the shopkeeper, 7 I was not a teacher. But he said there were usually many 8 customers coming to his shop, so he hoped to learn a little English. I spent three hours a day 9 him. In return, he gave me three meals a day and some money." "Did he learn muchEnglish?" I asked. "I don't know," John said, " 10 I learned a lot of Japanese!" ( )1. A. weeks ( )2. A. happy ( )3. A. money ( )4. A. Where did you work ( )5. A. to ( )6. A. are ( )7. A. knows ( )8. A. American ( )9. A. teach ( )10. A. and B. months B. angry B. time B. What did you doB. at B. aren’t B. knew B. French B. taught B. but C. years C. surprised C. work C. How did you get itC. for C. wasn’t C. didn’t know C. Russian C. teaching C .or D. days D. sorry D. friends D. When did you do it? D. of D. isn’t D. know D. Japanese D. to teach D. although 查看答案
题型：问答题 简答题 在计算机网络规划设计过程中，也需要综合考虑所选用网络协议的报文通信流量对网络系统所产生的影响。以下相关描述中，说法正确的是______。A．DHCP Discover报文对某个网段通信流量的影响比DHCP Offer报文大B．DHCP ACK报文对某个网段通信流量的影响比DHCP Request报文小C．ARP Request报文对某个网段通信流量的影响比ARP ACK报文大D．SNMP的GetBulkRequest报文对某个网段通信流量的影响比GetNextRequest报文小 查看答案