慢性支气管炎最主要的症状是：（） A.慢性咳嗽咳痰 B.可有喘息 C.发热黄痰 D.

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小题1:Robin is a boy full of imagination who often dreams of having superb skills to fight against monsters and becoming a hero. His favorite films are Superman and Spiderman. Having getting permission from his mother, he’s now looking for something he likes for this weekend.

小题2:Sunny is a 4-year-old girl. Like most kids, she likes cartoons very much. And she has a pet dog in her company. Her parents will be busy this Sunday, so they are looking for a comedy for her to enjoy.

小题3:Betty is an outgoing and emotional woman who likes traveling. She has been very busy lately. So with the weekend drawing near, she’s considering going to see a romance film to relax with her husband.

小题4:George and Adam have been good friends since middle school. They have a lot in common, both of whom like playing football and reading, especially detective stories. This weekend they’re planning to go to see a film that fits their taste.

小题5:After spending a year in South Africa doing some survey about poor children’s welfare, Mike has come back for a break. Knowing her husband is a fan of Jack London’s novel, his wife has some idea how to kill their time this weekend.

下面关于基因的叙述，哪一项是错误的 [ ]

A．基因是DNA上有遗传效应的片段

B．不同的基因含有控制不同性状的遗传信息

C．基因有规律地集中在染色体上

D．基因存在于染色体的蛋白质上

下列混合物中不属于溶液的是（　　）

A．食盐水

B．牛奶

C．雪碧

D．澄清石灰水

消化性溃疡病人禁忌的食品？（）

A、浓茶

B、稀饭

C、面条

D、新鲜蔬菜