题目

Electronic Village Program (Thursday , June 18 , 2017) Nearpod ◎9:00 am to 10:00 am ◎Room 501 Nearpod is a software program that creates a rich context(语境）for students to learn vocabulary. The presenter will show how to use it.    TEO ◎2:00 pm to 3:00 pm ◎Room 502 Our students come from different backgrounds but have the same desire to learn on-line. The presenter will use examples from his first on-line class to explain how any teacher can begin teaching on-line with TEO. Kahoot ◎10:30 am to 11:30 am ◎Room 601 Kahoot software can be used to create grammar tests whic下列反应过程中，同时有离子键、极性共价键和非极性共价键的断裂和形成的反应是?(　　)A.NH4ClNH3↑+HCl↑B.NH3+CO2+H2ONH4HCO3C.2NaOH+Cl2NaCl+NaClO+H2OD.2Na2O2+2CO22Na2CO3+O2