题目

下列关于高等植物细胞的细胞周期的叙述，错误的是（ ）A.G1期和G2期合成的蛋白质不同，S期完成DNA的复制B.末期赤道面上许多囊泡聚集成了细胞板C.前期核膜开始解体，形成分散的小泡，在较晚时候出现了纺锤体D.中期细胞中的染色体数和核DNA数均加倍 答案：【答案】D【解析】植物细胞分裂间期包括G1期、S期和G2期，其中G1期和G2期合成RNA和蛋白质，但是蛋白质的种类不同，S期进行DNA的复制，A不符合题意；末期在赤道板的位置上出现了细胞板，向周围扩展形成子细胞壁，B不符合题意；前期核膜开始解体，形成分散的小泡，在较晚时候出现了纺锤体，C不符(2017届湖北部分重点中学高三新考试大纲适应性考试)After 21 years of marriage, my wife wanted me to take another woman out to dinner and a movie. That Friday after work, I drove over to pick her up. We went to a restaurant that, although not 21 , was very nice and cozy. My mother took my arm ___22 __she were the First Lady. During the dinner, we had an agreeable conversation — nothing 23 but catching up on recent 24 of each other’s life. We talked so much that we missed the 25 .As we arrived at her house later, she said, ＂I’ll go out with you again, but only if you let me 26 you.＂ I agreed. ＂How was your 27 ?＂ asked my wife when I got home. ＂Very nice. Far 28 my wildest imagination＂ I answered.A few days later, my mother died of a heart attack. It happened so 29 that I didn’t have a chance to do anything for her. Some time 30 , I received an envelope with a copy of a restaurant 31 from the same place where mother and I had dined. An 32 note said: ＂I paid this bill 33 . I wasn’t sure that I 34 be there; but I still paid for two plates – one for you and the other for your 35 .You will never know what that night 36 for me. I love you, son.＂ At that moment, I 37 the importance of saying in time: ＂I LOVE YOU＂ and to give time to our family. ___38___ in life is more important than your family. Give them the time they 39 , because these things cannot be___40 till ＂some other time.＂1.A. grand B. comfortable C. shabby D. delicate2.A. even if B. as though C. so that D. in case3.A. unbelievable B. attractive C. interesting D. extraordinary4.A. accidents B. events C. coincidences D. conditions5.A. bus B. appointment C. movie D. time6.A. accompany B. order C. satisfy D. invite7.A. date B. dinner C. film D. mother8.A. from B. beyond C. beneath D. out of9.A. immediately B. abruptly C. absolutely D. awfully10.A. before B. ago C. later D. after11.A. receipt B. bill C. reception D. notice12.A. extra B. additional C. attached D. approved13.A. by chance B. on purpose C. for myself D. in advance14.A. might B. should C. could D. would15.A. son B. wife C. friend D. colleague16.A. meant B. paid C. provided D. made17.A. advocated B. appreciated C. admired D. applauded18.A. Something B. Anything C. Everything D. Nothing19.A. demand B. need C. deserve D. desire20.A. put off B. called off C. taken off D. turned off