题目

Some people are naturally better than others in working the social scene.There are those that seem to be gifted in putting others at ease and letting the conversation flow naturally.There are the lucky few that draw people to them without any effort._36_Put yourself at ease and remember these tips: Smile!A smile is understood in any culture and any age as a sign of friendship.So go ahead!It will put the other person at ease.You will seem approachable and happy._37_ Make eye contact.Good eye contact engages the other person to you.When you are introduced to someone, shake their hands in在原子结构中，决定元素种类的是（      ） A．原子核         B．质子数           C．中子数            D．电子数