A：马歇尔计划的提出
B：杜鲁门主义的出台
C：丘吉尔的“铁幕”演说
D：北大西洋公约组织建立
有平面镜、凸面镜、凹面镜三种镜子，汽车观后镜用 ____，潜望镜用 ____，五官科医生耳道内窥镜用的是 ____
根据表格内容, 选择正确答案。
(B)
Wang Wei
I can't sing or dance. I can play the guitar. But I couldn't play it three years ago.
Alice
I can sing and dance. I can also play the piano. When I was six, I couldn't play the piano at all.
James
I can swim and cook. I can't draw pictures. I could swim when I was five years old.
Liu Fang
I can perform ballet and dance to disco. I can also sing English songs. But I couldn't sing English songs two years ago.
我国最大的岛屿是（ ）
随着我国人口老龄化快速发展，养老服务业已经逐渐成为消费热点，催生了智能养老、智慧健康养老等诸多新产业。这体现（ ）
①生产决定消费的方式 ②消费对生产具有导向作用
③消费是生产的目的和动力 ④生产决定消费的质量和水平
