生态材料属性中“recycled”和“recyclable ”都是指组成产品的原料是可再生材料（ ）The both terms of "recycled" and "recyclable" mean material within a product can be recycled after the product become obsolete（ ）
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- The both terms of "recycled" and "recyclable" mean material within a product can be recycled after the product become obsolete A: 正确 B: 错误
- 生态材料属性中“recycled”和“recyclable ”都是指组成产品的原料是可再生材料（ ）The both terms of "recycled" and "recyclable" mean material within a product can be recycled after the product become obsolete（ ）
- The both terms of "recycled" and "recyclable" mean material within a product can be recycled after the product become obsolete
- 下列账户中，月末既可能有借方余额，也可能有贷方余额的是 ( )。 A: "制造费用" B: "基本生产成本" C: "材料成本差异" D: "本年利润"
- 从关系中挑选出指定的属性组成新关系的运算称为（ ）。 A: "选取"运算 B: "投影"运算 C: "交"运算 D: "联接"运算