测试的目的是暴露错误，评价程序的可靠性；而 【1】 的目的是发现错误的位置并改正错误

Soll is a village in the mountains in western Austria. And the Post Hotel is clean and inexpensive. It is opened by a local family. From the hotel you can see the whole village, the forests and the mountains. Temperatures in summer are usually 20℃ to 25℃ in the daytime, but much cooler by evening.

When you visit Bangkok in Thailand, don’t miss the early morning river boat trip to the Floating Market just outside the city. There you will find many kinds of fruits and vegetables. And you can pay for them when you sit in your boat. Don’t forget your hat: the sun can be strong and it may be as hot as 40℃ at noon.

Maybe the most beautiful place in Hawaii is Kauai. You can visit its long, sandy beaches in the south and west of the island, and mountains and forests in the north, but don’t be surprised if it rains in the centre of the island. Daytime temperatures there are usually around 24℃ to 26℃ by the sea, and only a little cooler by late evening.