住房保障、医疗保险、养老保险等民生问题都是世界性难题，党和政府在这些方面向世界交出了一份份“中国答卷”。破解民生难题的根本途径是（    ）

下列关于人类对细菌、真菌的利用，错误的是（　　）

下面对文章《鱼我所欲也》内容理解不正确的一项是（   ）

    Last week, we asked some students about how to1 friends and if friends should 2the same or different. Here is what one of the students said.

    Jeff Green, a shy boy, said he is quieter and more serious than most kids. That's3he likes reading books and studies much 4 in class. He and his friend Yuan Li have one thing in 5: they are both quiet. Jeff thinks friends are like books — you don't need a lot of them, as long as they are good.