题目

Listen to the passage and complete the following sentences（听短文, 完成句子）： 【1】David White is from _____________.【2】He wants a flat in the city ______________.【3】This flat has got a sitting room, a____________, three bedrooms and two bathrooms.【4】It is very __________ for David if he lives in this flat.【5】If he wants to rent this flat, he should pay ___________ yuan each month.如图为某分子模型示意图，其中“”代表H，“”代表O．下列关于它的叙述正确的是（ ）A．化学式为H2O2B．水溶液能与MnO2发生化合反应C．1个分子中含2种分子D．0.9%的该水溶液常用于人体输液