题目

Why did she spend so much time searching shop after shop only for a blouse? -Oh, she was very __ about her clothes. A. pleased                       B. curious            C. worried      D. particular   答案：D下列有关Ca（OH）2的说法，错误的是（　　）A．俗称熟石灰或消石灰B．可用于治疗胃酸过多症C．可用于改良酸性土壤D．可用于处理硫酸厂排出的酸性废水