Singapore Port is the center of the（ ） A: politics B: economy C: culture D: transportations

In recent years a number of ________ satellites have been put into orbit. A: communication B: transportation C: transportations D: communications

Among the following ways of transportations, which one is the most autonomous ? A: Train B: Airplane C: Self-Driving D: Cycle

Environmentally, meat, amazingly, causes more emissions than all of transportations combined. Key words or phrases：______ ______ Technique used here is：______

What can we infer from the passage? A: School staffs’(职员) income has reduced by half in New York City B: People will never be infected (感染) by coronavirus if they wear masks C: The poor face higher risk of exposure to the coronavirus than the rich D: New York City has shut down all transportations except subway