题目

科研人员对某海洋食用生物进行研究，得出了与种群密度相关的出生率和死亡率的变化，请据图判断下列说法中，不正确的是（   ） A．D点时进行捕捞最有利于该种群的持续生存 B．D点表示种群密度最大                          C．B点时种群数量很可能处于K/2 D．从O点到D点，种内斗争往往越来越激烈Life is filled with challenges．As we get older we come to realize that those challenges are the very things that shape us and make us who we are，it is the same with the challenges that come with friendship．When we are faced with a challenge，we usually have two choices．We can try to beat it off, or we can decide that the thing presenting the challenge isn’t worth the trouble and call it quits．Although there are certainly times when calling it quits is the right thing to do，in most cases all that is needed is commitment(承诺)and communication． When we are committed to something， it means that no matter how painful or how uncomfortable something is，we will always choose to face it through instead of running away from it．Communication is making a space for discussion and talking about how you feel as opposed to just saying what the other person did wrong．If you can say to a friend，“I got my feelings hurt．” rather than“You hurt my feelings．”you are going to be able to solve the problem much faster． In dealing with many challenges that friendship will bring to you, try to see them for what they are：small hurdles you need to jump or get through on your way through life．Nothing is so big that it is impossible to get over, and hurt only serves to make us stronger．It is all part of growing up，it happens to everyone，and some day you will look back on all of this and say,“Hard as it was，it made me who I am today．And that is a good thing．”1.What is the underlined word“committed”can be replaced by ____________．A． devoted B satisfiedC． smpdsed D． interested2.It can be inferred from the text that _____________．A． friendship needs challengesB． challenges shape our characterC． small hurdles aren’t worth the troubleD． commitment promotes friendship3.The writer suggests that _____________ when faced with a challenge．A． one should call it quitsB． one should temporarily run away from itC． one should be committed and communicableD． one should lay it a side for a while4.According to the passage，if your friend hurts your feelings，you are well advised to _______________．A． forget itB． talk to him／her about it directlyC． communicate properly with him／herD． run away from it5.The whole passage is centered on the relationship between _____________．A． friendship and challengesB． commitment and communicationC． communication and friendshipD． challenges and the ways to get through