题目

下列离子方程式正确的是（   ） A . 向 AlCl3溶液中滴加浓氨水至过量：Al3++4OH﹣═AlO2﹣+2H2O B . 漂白粉溶液中通入过量SO2：ClOˉ+H2O+SO2═HSO3﹣+HClO C . CuSO4溶液与Ba（OH）2溶液混合：Ba2++SO42﹣═BaSO4↓ D . 在澄清石灰水中加入少量小苏打溶液：Ca2++OHˉ+HCO3﹣═CaCO3↓+H2O 答案：D I have a good friend. _________Chinese name is Da Shan and his _________name is Mark Roswell. He_________from Canada. He can _________English and French (法语). And he speaks Chinese very _________. He likes China very much. Now he teaches English _________Beijing. Da Shan _________a big nose, big eyes _________short brown hair. He has a happy family. His wife (妻子) is from Sichuan, China. They _________two children. Da Shan’s father and mother are in Canada. But __________like China, too. And they often come to China.1.A.He B.Him C.His2.A.English B.French C.Chinese3.A.come B.does C.comes4.A.speak B.speaks C.says5.A.good B.nice C.well6.A.at B.to C.in7.A.is B.are C.has8.A.so B.or C.and9.A.is B.are C.have10.A.they B.them C.their