题目内容
体操动作的记写方法有完整记写法、缩写法和图解法3种。（）
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1.Translate the following sentence into Chinese , and choose the best translation.Fitness for the intended purpose remains the prime criterion, but cost is often a determining factor.
2 。Building materials must have certain physical properties to be structurally useful.
3.While choosing materials, the concern about reducing the amount of energy required for heating and cooling buildings, and also preference for materials and building manufacturing processes that require as little energy as possible are major considerations.
4.The species of timber most commonly used for construction are fir, pine, spruce and redwood.
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