棉型织物前处理的常规工序有坯布准备、烧毛、退浆、煮练、漂白、丝光、增白。
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通常将含有钙、镁盐类的水称为硬水。
A. 对
B. 错
Before she goes on holiday, Myra _____.
A. is worried
B. is headless
C. leaves by taxi
When the taxi comes for Myra, she _____.
A. checks her passport
B. unpacks everything
C. throws her passport on the floor
One year she couldn't go on holiday because _____.
A. she couldn't find her passport
B. she didn't have a ticket
C. she couldn't use her passport
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