5G is confined to provide faster mobile services for voice and data communication.
查看答案
5G networks are going to be 200 times faster than 4G.
A. 对
B. 错
Mahjong is totally about practice,precision,and proficiency.
A. 对
B. 错
According to the passage, which of the following is not the material used to make chopsticks?
A. Bamboo
B. Ivory
C. Paper
D. Colored lacquer
Which of the following practice is to obey chopsticks etiquette?
A. Food be picked up in the way as with a fork.
B. Chopsticks be placed vertically in rice.
Chopsticks be sucked in the mouth.
D. Chopsticks always be left on their stand when not in use.