当在电场中的某点放入正电荷时，它受到的电场力向右，当放入负电荷时它受到的电场 力向左．下列说法正确的是    [ ]

A．放入正电荷时该点场强方向向右，放入负电荷时该点场强方向向左    

B．只有在该点放入电荷时，该点才有场强    

C．该点场强方向一定向右    

D．以上说法均不对

---How are you getting along with your new classmates?

---________.They are all very friendly to me .

A．Not at all

B．So far,so good

C．Yes,I am

D．Personally, you are right