Welcome to England! The weather of England often changes. It can be rainy, sunny, cloudy, windy, warm, foggy or cold at any time of year. If it's raining when you get up in the morning, it can be hot and sunny in the afternoon.

    In England, shops are usually open from 9:00 in the morning to 5:30 in the afternoon. On Sundays some shops are open from 10:00 a. m. to 4:00 p. m. But most shops are closed. Banks, museums（博物馆）or other places are open from 10:00 a. m. to 5:00 p. m. You can go to the parks at any time.

    All the cities have buses, trains and taxis（出租车）. People wait in line (排队等候) for buses and they will not be happy if you come to the front from the end of the line. Don't forget that, traffic goes on the left.

Be careful and enjoy your time here.

根据短文内容，完成任务。

下列有关细菌及其生命活动的描述，正确的是（　　）

①以亲代DNA为模板合成子代DNA  ②纺锤丝牵引染色体移向细胞两极  ③细菌可以发生的变异只有基因突变 ④基因工程中细菌质粒、噬菌体均可作为载体．

我国著名作家丁玲是临澧人，其代表作是《边城》．（判断对错）