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Topic | 4G | 5G |
Speed | 4G takes about 100 to 200 milliseconds(毫秒) to send and receive information. | 5G will help cut down the time to 1 milli-second or less. |
Amusement | We can just experience the VR games in special places once in a while. | VR games will become more common and exciting with 5G. |
Traffic | Most people can’t trust self-driving in 4G because of unexpected problems. | 5G will make self-driving cars have much faster reaction(反应) than 4G. |
Smart Homes | Just a small part of the house has Blue-tooth to connect in 4G. | In smart homes, your home machines can start working ahead of time. |
5G will not only make our network faster, but change many things in our lives. Although not everyone can use 5G now, China is trying its best to let everyone use 5G as soon as possible. | ||
1．When did people use 5G in China?
| A．On May 30th, 2019. | B．In June, 2019. | C．In June, 2020. | D．Doesn’t know. |
| A．5G is about 100-200 times faster. | B．5G is about 10 times faster. |
| C．4G is as fast as 5G. | D．The passage doesn’t mention it. |
| A．trust self-driving in 4G totally | B．use self-driving cars more safely in 5G |
| C．use Bluetooth to connect everything in 4G | D．make your home machines work ahead of time in 4G |
| A．Huawei helped the BBC use 5G for the first time in the world! |
| B．5G can not make VR games more exciting than 4G. |
| C．5G will change everything in our lives. |
| D．Everyone can use 5G in China now. |
| A．an art book | B．a science fiction | C．a technology magazine | D．a sports newspaper |
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
