题目

Edinburgh Zoo makes plans to bring a pair of giant pandas from China to Scotland. Representatives from Edinburgh Zoo have recently returned from China, where they signed a letter of intent (意向书) making a promise to bring giant pandas to the zoo. It has been suggested that the breeding pair should be rented to the Royal Zoological Society of Scotland (RZSS) for 10 years and it is hoped they would give birth to babies during that time. Edinburgh Zoo would be the eighth zoo in the West to care for the species if the project goes ahead. Zoo chiefs said that looking after the endangered anima如图是实验室常见的制取气体的装置：（1）写出仪器名称：①______②______③______④______．（2）实验室采用装置A制取氧气时，其试管中应放的药品是______，试管口还要放一团棉花，目的是______，该反应的符号表达式是______ K2MnO4+MnO2+O2↑