There are three short insertions in the maize 23 s gene.玉米的23s基因中有三个短的插入片段.Using genedifferential gene expression in rats which fed with ferrous methionine chelate and ferrous sulfate respectivly.研究缺铁日粮中补充蛋氨酸螯合铁与硫酸亚铁对大鼠铁...
他们将把肉当作宠物食品卖掉。They would sell the meat off as pet food.要确保不在家时宠物不会想你。Make sure your pet won't pine while you're away.我把多余的鸟卖给当地的宠物商店。I sell my surplus birds to a local pet shop....
I'm looking for a black school bag.我在找一种黑色的书包.T : What is in the school bag? Can you touch and guess?让一名学生上来摸一摸,猜一猜,书包里有 什么 ?This is her school bag And this is his school bag.这是她的书包.这是他的书包....