题干

为研究各种激素在草莓成熟过程中的作用,某研究者选择大果期的绿色草莓做相关实验,一段时间后,统计不同颜色(可代表成熟程度)果实数及果实中相关激素含量,得到如图结果,相关说法错误的(    )

A:草莓成熟过程根本上是基因程序性表达的结果

B:草莓成熟过程中多种植物生长调节剂共同调节

C:色氨酸在细胞内经一系列反应可转变成生长素

D:IAA能降低ABA含量,延迟草莓的成熟进程

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B

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Don't talk to me; I'm busy with my iPhone

    Riding a London subway, a person from China will notice one major difference: in London, people do not look at each other. In fact, eye contact is avoided at all times. That's not rudeness—people are just too busy to bother looking.

    Busy doing what, you ask? Well, they're certainly not using the time for a moment of quiet reflection, nor are they reading a book. New technology has replaced quiet habits. Today the only acceptable form of book on the London underground is an e-book.

    Apple company must earn a fortune from London commuters. Since the iPhone was put on market in 2007, over 40,000 --- yes, that's 40,000 “apps” (programs downloaded for the iPhone) have been designed.

    Commuters love them because they are the perfect time-fillers. One “app”, called iShoot, is a game that features tanks. Another one, Tube Exits, tells passengers where to sit on the train to be closest to the exit of their destination. ISteam clouds the iPhone screen when you breathe into the microphone. You can then write in the “steam” on your phone screen.

    For those without an iPhone, another Apple product, the iPod, may be another choice. It's not just teenagers who “plug in” to their music --- iPods are a popular way to pass the time for all ages.

    And if games, e-books and music aren't enough to keep you occupied. Then perhaps you would prefer a film. The development of palm DVD technology means many commuters watch their favorite TV show or film on the way to work. With all this entertainments, it's amazing that people still remember to get off the train.

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