A shopkeeper has reduced litter in her village by 40%.
A. 对
B. 错
She writes the children’s names on the things they buy.
A. 对
B. 错
Ms. Froud’s initiative has been so successful, she says she now wants to do the same with adults.
A. 对
B. 错
急性炎症及化脓性炎症时主要是哪种白细胞渗出？
A. 中性粒细胞
B. 嗜酸性粒细胞
C. 单核细胞
D. 淋巴细胞
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