题干

如图是将某油料作物种子置于温度、水分、通气等条件适宜的黑暗环境中培养过程中干重的变化情况.分析有关说法中不正确的是(  )

A:检测种子中是否有脂肪,可用苏丹Ⅲ染液对种子切片染色

B:前8天,种子干重增加的主要原因是脂肪转化为糖类

C:实验过程中,导致萌发种子干重增加的主要元素是O

D:实验过程中,种子的总重量也和干重的变化趋势相同

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答案(点此获取答案解析)

D

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阅读理解

阅读下列短文,从每题所给的四个选项 (A 、B 、C  和 D )中,选出最佳选项。

    A survey has shown that what you do on a plane can be determined by which nationality is listed on your passport.

    According to the results of an international passenger survey, Australians are the biggest drinkers on board with 36 percent choosing to down the hatch, compared to 35 percent of Americans and 33 percent of Brits.

    The Airline Passenger Experience Association(APEX) spoke to around 1,500 people, aged 18 and older, who have travelled by plane at least once during the last three months and were living in the United States, United Kingdom, Germany, Japan, China, Singapore, Australia and Brazil.

    The results found Chinese travelers are most likely to nod off once the seat-belt sign switches off. They are also the first to take out their credit card for some in-flight shopping and the biggest fans of gaming. Americans on the other hand like to use their time in the air more productively---- when not drinking---- choosing to work while flying at 35,000 feet.

    Meanwhile, Brits and Germans are the best at making chat with random strangers----spending 50 percent more time than any other nationality. Comparatively, Brazilians conduct their conversations online via email, messaging apps or social media.

    Despite plane food having a bad reputation, seven out of ten interviewees said they were happy to eat up on the selection of in-flight snacks and meals. In-flight magazines were also popular with four out of five passengers.

    The international flyers did however express their desire for better in-flight entertainment. “The industry has greatly improved the comfort, entertainment and onboard service, and passengers are accepting those improvements” said Russell Lemieux, APEX executive director. “At the same time, passengers are demanding more from their air travel experiences which will drive more improvements touching all aspects of the journey. ” he added.