题型：填空题 题类：常考题 难易度：普通
华师大版初中科学七年级上学期 1.1 艳丽多姿的生物（第3课时）
北极海域 | 热带湖泊 | 全球分布 | |
A | 1 | 2 | 3 |
B | 5 | 3 | 4 |
C | 3 | 4 | 2 |
D | 2 | 1 | 5 |
时间 | 1min | 2min | 3min | 4min |
A | 活跃 | 活跃 | 不活跃 | 大部分死亡 |
B | 活跃 | 活跃 | 活跃 | 活跃 |
C | 活跃 | 活跃 | 活跃 | 活跃 |
1a有脊柱···············P 1b无脊柱···············2 2a身体不分节···········Q 2b身体分节·············3 3a有膜翅···············R 3b无膜翅···············S |
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