阅读理解。判断正(√)误(x)。
One day, Mr. and Mrs. Smith go shopping by car. They stop their car
near astore. They buy many things. And they want to put the things in the
car. But Mr.Smith can't open the door of the car. They ask a policeman to
help them. The police-man is very friendly to help them. Just then a man
comes up and shouts. "What are you doing with my car?"
Mr. and Mrs. Smith look at the car's number and they are frozen there. It
isn't their car.
( ) 1. Mr. and Mrs. Smith go shopping in a car.
( ) 2. They buy many things.
( ) 3. Mr. Smith opens the door of the car.
( ) 4. A policeman helps Mr. Smith open the door.
( ) 5. This isn't their car.
，母星的体积约为太阳的60倍。假设母星与太阳密度相同，“55 Cancri e” 与地球均做匀速圆周运动，则“55 Cancri e”与地球的 [ ]
