漂白的目的就是去除纤维上的色素,赋予织物必要和稳定的白度,而纤维本身则不遭受显著的损伤。
参考答案:对
同义句转换。
1. I used not to like Peking Opera.
I_____ _____ to like Peking Opera.
2. The sick boy needs an operation.
The sick boy needs to be_______ ________.
3. There’s enough time, so you needn’t hurry.
There’s enough time, so you_____ _____ _____hurry.
4. Father tells Daniel not to play computer games.
Father ______ Daniel _____ _____ computer games.
5. We will start a shopping mall over there.
We will________ _______ a shopping mall over there.
不属于消费统计的作用的是()
A、反应国民经济运行情况
B、反应城乡居民生活水平变化
C、反应统计调查制度的科学性
D、反应消费市场的供给情况,指导生产和流通企业