青春期心理充满矛盾，如渴望交际，珍惜友情，却又感到孤独，不愿与人交往；朝气蓬勃，勇于探索，但遇到挫折又容易失去信心，悲观失望……对这些心理矛盾，下列看法不正确的有（ ）
A：这些矛盾是我们成长过程中正常的心理现象，所以可以置之不理
B：这些心理矛盾有时让我们感到苦闷，但正是它们构成了我们向前发展的动力
C：这些心理矛盾如果处理不好，它们也会成为阻碍我们发展的动力
D：我们通过各种方式，借助各种力量来调控各种心理矛盾，是非常有必要的
小妮测量一个物体的长度时，记录的数据分别是：7.50cm、7.51cm、7.53cm则这个物体的长度是（ ）
同一物种的两类细胞各产生一种分泌蛋白，组成这两种蛋白质的各种氨基酸含量相同，但排列顺序不同。其原因是参与这两种蛋白质和成的（ ）
下列有关细胞不能无限生长的原因中，错误的是（ ）
规范、正确的实验操作对实验结果、人身安全都非常重要．下列实验操作中正确的是（ ）
These simple ways can increase(增加)your popularity and win you more friends，so why not try them?●PAYING ATTENTION TO OTHERS This will reduce any shyness you may have. You’ll be more relaxed and therefore more natural and fun. And you will get more good-people will love the fact that you’re paying attention to them while you don’t have to worry about what people think of you.●LOOKING PEOPLE IN THE EYE Making eye contact is very important because it shows you’re interested in them. If you let your eyes wander(游移)or keep looking over their shoulders，people will feel slighted(轻视)，and they’ll like you less they would otherwise.●ASKING QUESTIONS Doing this gives you two advantages，It shows other people that you are indeed paying attention to and that you consider what they are telling you important. Being sure to follow up when you’ve shared a conversation with someone about something important in his / her life，be sure to ask about it later. This shows that you listen and you care.●MAKING AN EFFORT TO SMILE A smile means acceptance，and that makes people open up to you. Make a conscious(有意识的)effort(努力)one day to smile at the people you stay or work with and watch how well they respond (作出反应)to you；●BEING RELIABLE(可靠的)People like those who help them，and they quickly begin to hate those who don’t.
