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试述打顶的作用和方法？

答案

参考答案：打顶心：棉花主茎具有顶端生长优势。适时打顶，可消除主茎顶端生长优势，调节棉株体内养分向蕾铃输送，控制株高和减少上部无效果枝，塑造高产株型。

技术：打顶时间：“时到不等枝，枝到看长势”的原则。中等密度与肥力的田块，可在7月下旬打顶，肥水条件较好，密度较低，长势偏旺的可在立秋前后打顶；密度较大，长势又弱，可提早在7月中旬。打顶的方法，以打去一顶一叶为宜，晴天有利于伤口的愈合

阅读理解
阅读理解。

                                             Part-time Front Desk Position
     Kirchoff, Inc. , a book development company, is looking for a part-time front desk office
worker. This position is perfect for a person who is cheerful, dependable,and pleasant to work
with. Also, you should be able to welcome guests, redirect phone calls, and take messages.
More importantly, you can stay cool under pressure. You are expected to work 5:00 - 6:00
pm weekdays. You need to fill in some forms if you are interested.
     Forms can be collected at
                        Kirchoff, Inc.
                      866 United Nations Plaza, # 525
                         New York,NY 10017


                      Important Points to Remember When Swimming
     Wait at least an hour after meals.
     Follow the advice of lifeguards.
     Don't dive into unknown waters. Always swim in line with the shore.
     Find out at the seaside when and where it is safe to swim.
     Don't use floating toys on the water. Wind can easily sweep them out to sea.
     Get out of the water if you feel tired or cold. Cold can kill even strong swimmers.
              Help Telephone: 212?543?5902
               Atlantic City Beach Office

      Arrive on time.
     Introduce yourself in a polite manner.
     Read company materials while you wait.
     Have a firm handshake.
     Listen.
    Use body language to show interest.
    Smile and nod to the interviewer.
    Ask about the next thing you should do.
     Thank the interviewer.
    Write a thank-you letter to anyone you have spoken to.
              For more information, please visit jobweb.com
            368 Cooper Square,New York. NY 10008

1. What does a person need most to be fit for the one-hour weekday job?
A. He should be cheerful, dependable, and easy going.
B. He has to work from Monday to Friday.
C. He can remain calm in a difficult situation.
D. He can welcome guests and deal with phone calls.
2. According to the above information, what is the right thing to do when you swim?
A. To keep close to the beach.  
B. To dive into unknown waters.
C. To use floating toys on the water.  
D. To swim soon after lunch.
3. The best title for the last piece of information would be _______.
A. Tips on Showing Interest in a Job
B. Steps to a Successful Interview
C. Advice on Introducing Yourself Politely
D. Rules of Body Language in an Interview
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单项选择题 A1型题

呈半球形，外果皮棕褐色至褐色，密被凹点状油室，切面边缘散有1~2列油室，气清香，味苦、微酸的药材是（）

A.木瓜

B.连翘

C.枳壳

D.栀子

E.金樱子
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