题干

为探究不同浓度的2,4﹣D溶液对绿豆发芽的影响,某实验小组用等量的蒸馏水、0.4mg•Ll、0.7mg•Ll、1mg•Ll、1.3mg•Ll、1.6mg•Ll的2,4﹣D溶液分别浸泡绿豆种子12h,再在相同且适宜条件下培养,得到实验结果如图所示.根据实验结果分析错误的是(  )

A:0.4 mg•Ll的2,4﹣D溶液促进芽的生长、抑制根的生长

B:2,4﹣D溶液既能促进根的生长,也能抑制根的生长

C:1 mol•Ll的2,4﹣D溶液是培养无根豆芽的最适浓度

D:2,4﹣D溶液具有与生长素相似的生理功能

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答案(点此获取答案解析)

A,C,D

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    The booking notes of the play “The Age of Innocence”:

    Price: $10

    DISCOUNTS;

    Saver: $2 off any seat booked any time in advance for performances from Monday to Thursday. Savers are available for children under 16, over 60s and full-time students.

    Supersaver: Half-price seats are available for people with disabilities and one companion. It is advisable to book in advance. There is a maximum of eight wheelchair spaces available and one wheelchair space will be held until an hour before the show.

    Standby: Best available seats are on sale for $6 from one hour before the performance for people eligible (suitable) for Saver and Supersaver discounts and thirty minutes before for all other customers.

    Group Bookings: There is a ten percent discount for parties of twelve or more.

    School: School parties of ten or more can book $6 standby tickets in advance and will get every tenth ticket free.

    Please note: We are unable to exchange tickets or refund (退款) money unless a performance is cancel led due to unforeseen circumstances.

BOOKING:

    There are four easy ways to book seats for performance:

    In person: The Box Office is open Monday to Saturday, 10a. m.- 8pm.

    By telephone: Ring 01324976 to reserve your tickets or to pay by credit card (Visa, MasterCard and Amex accepted).

    By post: Simply complete the booking form and return it to Global Theatre Box Office.

    On line: Complete the on-line booking form at www. Satan fiedtheatre. com.