—Have you written anything on Chinese traditional medicine so far?— _________, but I have a plan for it.
如图所示为点电荷a、b所形成电场的电场线分布图(箭头未标出),在M点处放置一个电荷量大小为q的负试探点电荷,受到的电场力大小为F,以下说法中正确的是( )
跛 破 坡
____旧
____子
山____
芬 忿 粉
____红
____忿
____芳