题目

下列有关细胞膜的叙述，错误的是（） A . 细胞膜的主要成分是磷脂与蛋白质 B . 细胞膜具有一定的流动性 C . 细胞膜的识别功能与膜蛋白有关 D . 细胞膜不具有选择透过性 答案：D Waiting with her mother at the check-out stand，a little girl saw a circle of white pearls in a box.“Oh，please，Mommy.Can I have them？”The mother __1__the back of the box.“A dollar ninety-five.If you really want them，I'll __2__some extra chores (杂活)for you and soon you can save enough money to buy them for __3__.” After she got home，Jenny did __4__her share of chores，and at last she had enough money to buy the necklace.She wore it everywhere—school，park，__5__ to bed.The only time she took it __6__ was when she had a bath. Jenny had a very __7__ daddy and every night when she was ready for bed，he __8__ stop whatever he was doing and come upstairs to read her a fairy tale.One night when he finished the __9__，he asked Jenny，“Could you give me your __10__，darling？”“Oh，no，please，Daddy.But you can have my toy horse __11__.”Dad kissed her and said good night.About a week later，__12__ the story time，Daddy asked for pearls again.“Oh Daddy，you can have my babydoll，”was Jenny's reply.And __13__，Daddy kissed her good night. A few nights later when Daddy came in，he __14__ Jenny was trembling on the bed，crying.She said __15__ but lifted her little hand up to Daddy.And，when she __16__ it，there was her pearl necklace.“It's for you，Daddy，”she said.Tears in eyes，Daddy reached out with one hand to __17__ the necklace，and with the other hand he pulled out from his pocket a blue case with a __18__ of beautiful genuine(真正的)pearls.He had had them all the time.He was just waiting for her to give up the false stuff(东西) __19__ he could give her genuine treasure. In our life，how many false things are we holding on to that __20__ us from receiving God 's genuine treasures? 1．A.found  B．turned  2．A.smooth away      B．think of C．take over        D．cut down 3．A.ourselves     B．yourself  C．themselves     D．myself 4．A.so much as        B．no more than C．more than       D．less than 5．A.hardly         B．still  C．almost     D．even 6．A.in        B．up   C．away      D．off 7．A.humorous    B．loving  8．A.would         B．might  C．could      D．should 9．A.housework         B．work  C．bath        D．story 10．A.kiss    B．greetings  C．pearls      D．toy 11．A.instead       B．also  C．probably         D．actually 12．A.after  B．during  C．before     D．until 13．A.surprisingly enough  B．once again C．in return         D．as usual 14．A.remembered      B．noticed C．realized  D．expected 15．A.something         B．all  C．nothing  D．much 16．A.opened      B．closed  C．removed         D．showed 17．A.reject         B．touch  C．take        D．put 18．A.pile     B．piece  C．circle      D．set 19．A.until  B．so that  C．in case    D．though 20．A.stop  B．protect  C．save        D．get