题型:名词解释 关于综合实践活动课程资源的开发,下列说法不正确的是()。A.尽量在课堂中进行,不要引导学生向校外延伸、向社区延伸B.优化课程资源,对课程资源重新组合C.考虑地方差异和学校传统,体现课程资源的地方性特色D.体现综合性和整体性 查看答案
题型:名词解释 In (66) the strength of the carrier signal is varied to represent binary 1 or 0. (67) is a system that can map a name to an address and conversely an address to al name. (68) is a three-way handshaking authentication protocol that it’s packets are encapsulated in the point-to-point protocol. (69) is an approach that enables an ATM switch to behave like a LAN switch. (70) is an guided media which is made of glass or plastic and transmits signals in the form of light.A.PPPB.PAPC.CHAPD.LCP 查看答案
题型:名词解释 压缩双电层作用的含意是()。A.水中加入电解质后,其正离子挤入扩散层使之变薄,进而挤入吸附层,使胶核表面负电性降低 B.水中加入电解质后,其正离子直接进入吸附层,使胶核表面负电性降低 C.水中加入电解质后,分子本身成为带电的粒子使胶核表面电性降低 D.水中加入电解质后,其负离子直接挤入吸附层,中和胶核表面的正电荷 E.水中加入电解质后,其正离子直接挤入吸附层,中和胶核表面的负电荷 查看答案