患者，73岁，腹外疝手术后，出现下腹剧痛伴排尿困难，值班护士判断可能是合并前列腺增生引起尿潴留，下列处理方法不妥的是（ ）。

单项选择题细胞特征描述不正确的是：

单项选择题2.The Chinese Four Great Inventions as well as the skills of and silk spinning were transmitted to the West. A、A. silkworm growing B、B. silkworm treating C、C. silkworm breeding D、D. silkworm counting