mrs browns was c______after a mouse out of the kitchen when i saw her this morning

相关推荐

• One day a lady saw a mouse 1_____(run)across her kitchen floor when she 2____(cook).She was very afraid of mice,so she 3_____(rush)out of the house,got on a bus and went down to the shops.There she spent 10dollars 4____(buy)a mouse-trap.The shopkeeper said to her,"Put some chees on it,then you 5_____(catch)that mouse soon."The lady went homewith the mouse_trap,but she couldn't find any chees in the cupboard."Oh,i 6_____(use)up the cheese already."She
• mrs browns was c______after a mouse out of the kitchen when i saw her this morning
• 已知实系数一元二次方程x^2+(1+a)x+a+b+1=0 的两个实数根为x1,x2,
• 假如你分离纯化到了一种新的蛋白质因子,如何研究其在细胞中的生物学功能?