根据短文，判断正误。

   My name is Mary. I am eleven. Ted is my brother. He is thirteen. We are in the same school. My mother is a teacher. She is a teacher in our school. My father is a teacher, too. He is a Chinese teacher in a college. I have a cat. Its name is Miaomiao. It is white. It is a nice cat. We are good friends.

日本学者斯波义信认为，随着唐宋时期城市“坊市制’’的崩溃，在“农村——农村市场——半农村城市——中小城市产生”的反复过程中，包括工商城市在内的城市经济网日益稠密，使农村经济走向依存于市场的方向。这说明，唐宋时期城市经济的变迁（    ）

甲、乙、丙三位同学均对酵母菌的生长情况进行了探究．甲、乙两同学先配制了含有酵母菌生长所必需的各种营养成分的培养液，调节到酵母菌生长的最适pH，各取1mL于试管中，接种等量的酵母菌菌种，放在适宜的条件下培养一段时间，进行计数．