A:3个
B:4个
C:5个
D:6个
1912—1919年是中国近代民族工业发展的一个重要阶段,对其表述不正确的是( )
(1)先化简,再求值:(2x+3)(2x-3)-2x(x+1)- (x-1)2,其中x=-1(2)已知a3m=3,b3n=2.求(a3m)3+(bn)3-a2m·bn·a4m·b2n的值.
A: Hello, Mike.
B: Hello, Lucy.
A: ____
B: I'm feeling better now.
B: He said I had got a bad cold.
B: No, I can't. I have to stay in bed for a few days.
B: Could you help me with my lessons when I am well?
A: Sure. ____
B: Thank you.
A. What's wrong with you?
B. I hope you'll be better soon.
C. Can you come to school today?
D. How are you today?
E. I'm sorry to hear that.
F. What did the doctor say?
G. Are you feeling better now?