如图是点电荷电场中的一条电场线，下列说法正确的是

A．A点电势一定大于0

B．B点的电势一定比C高

C．B点的场强一定比C强

D．该电场线一定是正点电荷形成的电场中的一条电场线

仔细阅读下面的短文，短文中有10个空格。请根据语境或按照括号内的具体要求完成语法填空。

Soon after Dave left college, one of his uncles, who was rich and had no    小题1:   of his own, died and left Dave a lot of money, so he decided to   小题2:   (动词) his own real estate agency(房地产公司).

He found a nice office,    小题3:   (buy) some new furniture and moved in. He had only been there for a few hours when he heard someone coming    小题4:   the door of his office.

“It’s my first customer!” he thought. He quickly picked up    小题5:   (冠词) telephone and pretended to be very busy    小题6:   an important call from someone in New York   小题7:   wanted to buy a big and expensive house in the country.

The man knocked at the door    小题8:  this was going on, came in and waited   小题9:   (polite) for the agent to finish his conversation. Then he said to him, “I’m from the telephone company, and I   小题10:   (send) here to connect your telephone.”