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问题 选择题

生物进化的历程不包括下列哪项[ ]

A、由水生到陆生  

B、由低等到高等  

C、由个体到群体  

D、由简单到复杂

答案

答案：C

填空题

近似数3.10×104精确到______位．
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填空题
用括号内动词的适当形式填空。
1. Today Chinese _____ (speak) by more and more people around the world.
2. An English speech _____ (give) to the children tomorrow.
3. —Did you go to Lily's birthday?
    —No, I _____ (not invite).
4. This kind of food must _____ (keep) cool. Clean and dry according to the instruction.
5. The dog _____ (train) to understand different instructions for two years.

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