小龙在做两位数乘以两位数的题时,把一个因数的个位5错看成2,乘得的结果是550, 发布时间:2017-04-19 02:40 │ 来源:www.tikuol.com 题型:解答题 问题: 小龙在做两位数乘以两位数的题时,把一个因数的个位5错看成2,乘得的结果是550,而实际的正确结果是625,这两个两位数各是多少?
题型:解答题 完形填空。 The sun, the moon and the stars are all in the sky. The earth 1 round the sun . And the mooncircles (围绕) the earth . The sun is 2 than the moon . It gives us light and heat (热量). When our part of the earth turns 3 the sun, it is day. When our part of the earth turns away 4 the sun , it is night . "Morning" is the time 5 sunrise (日出) and twelve o'clock, the 6 is overhead (当头). It is "noon" . And when the sun sets (日落),it is "evening" . The moon is much smaller than the sun. It 7 bigger only because it is much 8 the earth. It is ournearest neighbour (邻居) in space (宇宙). Sometimes it looks quite bright , but it 9 any light at all. The light on the moon 10 from the sun . It only reflects (反射) the 11 of the sun . The stars look 12 than the sun and the moon . But 13 of the stars are bigger than the sun. 14 look small because they are very far away from 15 .( )1. A. move ( )2. A. big ( )3. A. in ( )4. A. from ( )5. A. like ( )6. A. earth ( )7. A. is ( )8. A. nearer ( )9. A. doesn't give ( )10. A. come ( )11. A. light ( )12. A. small ( )13. A. much ( )14. A. It ( )15. A. It B. moves B. much big B. into B. to B. between B. moon B. has B. near B. doesn't haveB. comes B. lights B. smaller B. some B. They B. them C. is movingC. much biggerC. at C. into C. for C. sun C. looksC. near toC. gives C. goesC. heatC. big C. manyC. SomeC. us D. is going to move (移动)D. much more bigger D. to D. / D. in D. star D. likes D. nearer to D. has D. has D. night D. bigger D. most D. All D. the sun 查看答案
题型:解答题 电子商务,通常是指是在全球各地广泛的商业贸易活动中,在因特网开放的网络环境下,基于浏览器/服务器应用方式,买卖双方不谋面地进行各种商贸活动,实现消费者的网上购物、商户之间的网上交易和在线电子支付以及各种商务活动、交易活动、金融活动和相关的综合服务活动的一种新型的商业运营模式。目前,电子商务全球交易规模约9万亿美元,年增长保持40%以上,其中企业间电子商务(B2B)所占比重为八到九成。这一事实表明A.电子商务工作不是生产性劳动B.电子商务从业人员的劳动是创造价值的劳动C.抽象劳动不是价值的唯一源泉D.电子商务创造的价值要高于简单劳动 查看答案