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问题 选择题

全部位于南半球的大洲是（　　）

A．大洋洲

B．非洲

C．南极洲

D．南美洲

答案

大洋州、非洲、南美洲均被赤道穿过，南极洲全部位于南半球．故选项C符合题意．

故选：C．

阅读理解
阅读下面短文，然后从其后各题所给的四个选项中选择最佳选项。
        Everyone's got a funny story. Just send us yours, and if we publish（出版）it in Reader's Digest, you'll
be laughing all the way to the bank. Here's how it works:
        Payment
        We pay $100 for true, never-before-published stories we print in Life's Like That, All in a Day's Work
and Laughter, the Best Medicine.
        The rule
        Your story, which should have fewer than 300 words, becomes our property (财产) upon payment.
Please don't forget your name, address and phone number.
        Where to send your story 
        E-mail: asia.rd@readersdigest.com
        Fax: 65-6749-1312 
       Address: Humour Editor, Reader's Digest, Asia Edition GPO Box 497, Hong Kong
1. What does the writer ask us to do?
[ ]
A. To publish our books.
B. To pay him some money.
C. To send him our stories.
D. To leave our names.
2. What we write to the writer should be _________, true and never-read.
[ ]
A. serious, long
B. funny, long
C. serious, short
D. funny, short
3. In how many ways can we write to Reader's Digest?
[ ]
A. 2.
B. 3.
C. 4.
D. 5.
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填空题

某种蓄电池的充放电过程可表示为：Fe(OH)2+Ni(OH)2Fe+NiO2+2H2O，该电池充电时，阳极是________，电极反应式为__________________。

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