我们生活在一个充满声音的世界中，关于声音的下列说法正确的是（    ）

男士穿西服，女士打洋伞，这是19世纪中期日本上层人物崇尚的行头——这些情景的出现与明治维新时期实行的哪项措施有关（    ）

Flat A：Lovely double bedroom with own store space in the house, garden, garage(车库)and parking space. 5 minutes to the library,18 minutes to the bank. TV broadband available.
115 pounds per week including all the bills. Four weeks rent(租金)，four weeks deposit(押金)required．
Tel：07912100237
Flat B：A double room available to rent at￡420 per month in a 2-bedroom new apartment located in London. It's ideal for students (5 minutes to University of Greenwich, Avery Hill campus) and professional people for short term. 2 minutes walk to the train station and local town centre. There are fast trains to London Bridge(15 minutes)and Cambridge Cross Station(20 minutes)in London.
There are public buses to Cambridge, Greenwich etc.
Features: entrance hall, modem kitchen and bathroom, living room and parking space.
Tel: 17912100273
Flat C：Shared flats available for rent, weekly￡80 including breakfast and dinner；daily￡20 including breakfast. Wireless(无线) Internet is provided for free. Central location in London, ideal for holiday makers and students．
Tel: 0791 2305237

当前，水污染、水资源短缺导致的水危机日趋严重，研究表明，80%的疾病是由水污染引起的．下列有关人体内水的叙述，错误的是（　　）