我国A公司计划引进一台进口设备，货品相当的两个供应商报价分别为：欧洲甲公司报价为1000万欧元，美国乙公司报价为1000万美元。若受欧洲央行实施全面降息、美联储加息等因素综合影响，汇率出现如下变化，不考虑其他因素，则当前A公司的理性选择是（    ）

①购买甲公司产品，若购买乙公司产品成本会比1月1日增加200万元

②购买乙公司产品，因乙公司产品的实际购买成本比甲个要低

③先兑换美元，再兑换欧元购买甲公司产品，比直接购买省50万元

④购买甲公司产品，因为欧元贬值，人民币升值在欧洲购买力增强

国务院印发的《关于深化预算管理制度改革的决定》中指出，深化预算管理制度改革，要进一步规范政府行为，防范财政风险，实现有效监督，提高资金效益，逐步建立与实现现代化相适应的现代财政制度。这告诉我们，深化预算管理制度改革是（   ）

①国家运用财政政策促进经济平稳运行的重要举措

②政府运用转移支付手段促进社会供求平衡的途径

③科学配置资源、维护公平公正的市场秩序的必然要求

④优化财政收支结构、推进国家治理体系现代化的保障

下列选项中，不符合激素概念特点的是（　　）

世界上最湿润的大洲是（    ）

   How many kinds of music do you know ? There is classical music, 1 music, country music, rap (说唱音乐) and so on. I think every type of music has its own 2. For example, I think country music is so beautiful and rap is very cool. My favorite kind of music is pop music 3 it is very interesting and exciting. It can make me feel very 4 .
   Now I want to tell you5 about my favorite singer and music group. My favorite singer is Jolin. Her Chinese name is Cai Yilin. She has a very beautiful 6 and her songs very wonderful. I love her song Say Love You, The Smell of Lemon Grass and Pirates best. What do you 7 these songs ? I hope Jolin has a good time every day.  8 my favorite music group ? That is S.H.E. Their songs are so cool that I have never 9 a chance to watch their performances.10 to music is also good for me. It can make me feel relaxed and less lonely when I stay at home alone.