China is a land of bicycles. At least it was back in 1992 when I traveled the country. Back then everyone seemed to be riding a bicycle. Millions of them, all black. Cars were rare. Yet since my arrival in Beijing last year, I've found the opposite is true. There are millions of cars. However, people still use their bicycles to get around. For many, it's the easiest and cheapest way to travel today. Bicycles also come in different colors --- silver, green, red, blue, yellow, whatever you want.

    It's fun watching people biking. They rush quickly through crossroads, move skillfully through traffic, and ride even on sidewalks. Bicycles allow people the freedom to move about that cars just can't provide.

    Eager to be part of this aspect of Chinese culture, I decided to buy a bicycle. Great weather accompanied my great buy. I immediately jumped up on my bicycle seat and started home.

    My first ride home was orderly (守秩序的). To be safe, I stayed with a “pack” of bikers while cars on the streets came running swiftly out of nowhere at times. I didn't want to get hit. So I took the ride carefully.

    Crossing the streets was the biggest problem. It was a lot like crossing a major highway back in the United States. The streets here were wide, so crossing took time, skill and a little bit of luck.

    I finally made it home. The feeling on the bicycle was amazing. The air hitting my face and going through my hair was wonderful. I was sitting on top of the world as I passed by places and people. Biking made me feel alive.

炎热的夏天，用电风扇吹风能使人感到凉爽，用温热毛巾擦脸也能使人感到凉爽，请说明理由．

阅读下面的文言文，完成下列小题。

    沈束，字宗安，会稽人。父侭，邠州知州。束登嘉靖二十三年进士，除徽州推官，擢礼科给事中。

    时大学士严嵩擅政。大同总兵官周尚文卒，请恤典，严嵩格不予。束言：“尚文为将，忠义自许。曹家庄之役，奇功也，宜赠封爵延子孙。他如董旸、江瀚，力抗强敌，继之以死。虽已庙祀，宜赐祭，以彰死事忠。今当事之臣，任意予夺，忠勤反捐弃，何以鼓士气，激军心？”疏奏，嵩大恚，激帝怒，下吏部都察院议。闻渊、屠侨等言束无他肠，唯疏狂当治。帝愈怒，夺渊、侨俸，下束诏狱。已，刑部坐束奏事不实，输赎还职。特命杖于廷，仍锢诏狱。时束入谏垣^①未半岁也。逾年，俺答^②薄都城。司业赵贞吉以请宽束得罪，自是无敢言者。

    束系久，衣食屡绝，惟日读《周易》为疏解。后同邑沈练劾嵩，嵩疑与束同族为报复，令狱吏械其手足。徐阶劝，得免。迨嵩去位，束在狱十六年矣，妻张氏上书言：“臣夫家有老亲，年八十有九，衰病侵寻，朝不计夕。往臣因束无子，为置妾潘氏。比至京师，束已系狱，潘矢志不他适。乃相与寄居旅舍，纺织以供夫衣食。岁月积深，凄楚万状。欲归奉舅，则夫之饘粥无资。欲留养夫，则舅又旦暮待尽。辗转思维，进退无策。臣愿代夫系狱，令夫得送父终年，仍还赴系，实陛下莫大之德也。”法司亦为请，帝终不许。

    帝深疾言官，以廷杖遣戍未足遏其言，乃长系以困之。而日令狱卒奏其语言食息，谓之监帖。或无所得，虽谐语亦以闻。一日，鹊噪于束前，束谩曰：“岂有喜及罪人耶？”卒以奏，帝心动。会户部司务何以尚疏救主事海瑞，帝大怒，杖之，锢诏狱，而释束还其家。

    束还父已前卒束枕块饮水佯狂自废甫两月世宗崩穆宗嗣位起故官不赴。丧除，召为都给事中。旋擢南京右通政。复辞疾。布衣蔬食，终老于家。束系狱凡十八年，比出，竟无子。

（《明史》列传第九十七）

①谏垣：指谏官官署，即专职进谏官吏的办公场所。②俺答：明朝时的蒙古土默特部落。

在欧洲大陆上最早进行工业革命的国家是(　　)