题目内容
计算下面图形的边长之和。
1. _______________ 2. _______________ 3. _______________ 4. _______________
1. nine 2. twelve 3. twenty 4. sixteen
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相关题目
1. _______________ 2. _______________ 3. _______________ 4. _______________
Climb like a bear.
Walk like an elephant. 
Jump like a squirrel.
Fly like a bird.
Hunt like a mouse. 
