Mr. Brown brought his 5-year-old son to the museum and created a rat toy. How much did they pay at least?
如果布朗先生带着他5岁的儿子来到博物馆，还做了个老鼠玩具。他们至少要付多少钱？
Objective: To evaluate effects of tRA on activity and content of UCP in rat brown adipose tissue mitochondria.
目的：探讨全反式维甲酸（tRA ）对大鼠棕色脂肪组织线粒体上解偶联蛋白（UCP）活性和含量的影响。
My cousin has a pet rat. It's white with brown spots and it's really fat because my cousin feeds it from the table all the time.
也许我该养一只宠物鼠，我堂弟就养了只带褐斑的小白鼠，它太胖了是因为堂弟整天喂它吃东西。
My cousin has a pet rat. It's white with brown spots and it's really fat because my cousin feeds it from the table all the time.
也许我该养一只宠物鼠，我堂弟就养了只带褐斑的小白鼠，它太胖了是因为堂弟整天喂它吃东西。
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