There is water on the floor. Please be careful.
A：too many
B：much too
C：many too
D：too much
A. You're welcome.
B. What shape would you like?
C. I'd like some cherries, too.
D. What kind of pudding would you like?
E. Yes. I want to buy a pudding.
A: Can I help you?
B:____
A:____
B: I'd like a chocolate pudding.
B: I'd like a heart-shaped pudding.
A: Anything else?
B:____How much are they?
A: 70 yuan.
B: Here is the money.
A: Thank you.
R/Ω
2
4
6
8
10
12
P/W
5
7
9
设向量a→=（x，1），b→=（4，x），且a→，b→方向相反，则x的值是（ ）
