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David: What? Flying cars? That’s impossible!
Becky: 2．Many companies (公司) have been trying to make safer ones.
David: Really?
Becky: 3．
David: Sounds great! What's it like?
Becky: It is nearly 6 meters long and seats two people. It has wings that can fold. 4． And it can change into an airplane in just seconds.
David: Is it very expensive?
Becky: Yes, around one million yuan.
Linda: Wow! 5．
| A．Yes. It's reported that some companies plan to sell the flying cars. |
| B．So the driver can park it like a car. |
| C．How fast it is! |
| D．Have you heard of flying cars? |
| E．But anyway, it's worth the price. |
| F．Actually, it is not a new idea. |
| G．Can they fly high? |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
