题干

把真菌分为酵母菌和霉菌的主要依据是(  )

A:生活环境

B:形态结构

C:内部结构

D:生理功能

上一题 下一题 0.0难度 选择题 更新时间:2018-11-30 04:21:10

答案(点此获取答案解析)

B

同类题1

阅读文段完成下列各题。

放弃,是一种智慧

       ①人生如棋,高明的棋手重视获取,也懂得放弃。有时需要丢卒保车,有时也需要丢车保帅。所以说,生活的艺术也就是放弃的艺术,学会放弃,学会放弃什么,守住什么,才算懂得生活。

       ②“放弃”或“放下”,是一种大境界、大智慧。佛陀在世时,有位婆罗门拿了两瓶花要献给佛,并请他开示佛法。佛说:“放下。”婆罗门放下了左手的花瓶。佛又说:“放下。”婆罗门放下了右手的花瓶。佛还是说:“放下。”婆罗门满脸疑惑地望着佛,不知佛还要他放下什么。佛说:“我是叫你放下六根、六尘、六识。只有这样,你才能从生死的桎梏中解脱出来。”可见,要放弃的不仅仅是有形的东西,名利、富贵、一切的烦恼,统统都可以放弃。

       ③秦末的项羽,论力论智,都不比刘邦差,但他却自刎而死,为什么?因为他不肯放下该放下的东西。

       ④第一,他没有放下过去的荣誉,起兵八年,大小七十余战,毕竟是过去的事了,但却成了他骄傲的资本。第二,他没有放下暂时的失利,认为自己“无面目见江东父老”,而忘了另一条古训“胜败乃兵家常事”。如果他把这一切都放下,也许,他就肯过江东,一切从零开始,东山再起,卷土重来。

       ⑤亚历山大是一位伟大的国王,他在征服了许多王国胜利返回的途中,病倒了。临终前,他终于明白了,自己没有放弃一些该放弃的东西,否则,他的寿命还可以长久些。于是,亚历山大向将士们提出了三个遗愿:第一个遗愿是,我的棺材必须由我的医师独自运回去。第二,当我的棺材运向坟墓时,通往墓园的道路要撒满我宝库里的金子、银子和宝石。最后一个遗愿是把我的双手放在棺材外面。

       ⑥亚历山大第一,二个遗愿说明,生命和财富,一个人最终都是要放弃的。第三个遗愿,说明他是空着手来到这个世界,也是空着手离开这个世界的。

       ⑦放弃,必然有所失,但是得与失又是相对而言的。有时你自认为得到一些时,却有可能失去了很多;有时你显得失去不少,却有可能获得极大的收获。甚至可以说,没有失也就没有得,不要以一得而喜,不要以一失而忧,风物长宜放眼量。“塞翁失马,焉知祸福”,“失之东隅”却会“收之桑榆”,熊掌与鱼不可兼得时,先要放弃几条小鱼,再去获取珍贵的熊掌。

       ⑧懂得“该放弃时就放弃”是一种大智慧;懂得该放弃什么,留下什么,则是一种更大的智慧。

       ⑨有一种放弃是对求之不得的事物的放弃,尽力而为之后,发觉此事与我无缘,能潇潇洒洒地挥手而去,另辟发展一己才华之道,这也是一种明智的选择。

                                                                                                                                                                        (选自《现代养生》2011年第1期)

同类题2

根据短文理解,选择正确答案。

    I was feeling really down because my long-time friend had died. Then I started a six-week volunteering at a nursing home all day even Saturday. My duty was to serve the meal and clean up. One day I was told to go to Room 117 to make sure the patient was all right. I found a boy of eight sitting in bis bed watching a movie. I was shocked to see a child in this seemingly forgotten nursing home for the old. He was so small and weak that you had to look closely to find him. I grabbed his medical chart and found out :he had a terminal(绝症的) illness.

    We started to talk, and I found out that his family rarely visited, and all he did every day was watching TV I wanted to cry for him, and for my lost friend. As we talked, he had a smile on his face, and I asked him why and how he still managed to stay happy.

    He thought for a moment, and then said that too many people were dead even before they died. They walked around feeling that God had cursed(诅咒) them and they had nothing to live for.

    The boy said that he would not be like that. He woke 'every morning thankful to see another sunrise. He kept his window open so that he could smell the flowers and feel the heat of the sun. He also said that he had hope.

    "Too many people haven't seen much of that around here." He said, "Life is full of hope and we need to live life before it is gone."

    I don't know what happened to him. I guess he passed away, but his lesson lives on. I now wake up and live each day to the fullest. The key to life is not money or fame, but the lesson we learned from it.