题干

下列关于生物膜的说法,错误的是(  )

A:磷脂双分子层构成膜的基本支架,具有流动性

B:构成生物膜的大多数蛋白质分子是可以运动的

C:对细胞膜的研究是从膜的通透性开始的

D:流动镶嵌模型能完美无缺地解释膜的各种功能

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D

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    A white elephant gift exchange is a popular holiday party game in, the United States. Generally, the party needs at least six participants, and' the larger the group: is, the more entertaining the game will be____But it can result in heated competitions between players trying to get the gifts.

    ____Sometimes, the rule is that the item must be previously owned, which means that you can exchange an unwanted item or trinket(小装饰品) with your friends. But sometimes you can buy a new but inexpensive item just for the party.

    Every participant is expected to bring one wrapped(包装好的) gift. A white elephant gift is usually something useless or inconvenient____ Guests are asked to wrap them nicely and leave no identifying markings on the presents.

    To start the game, a participant must act as the first player to choose a gift; this can be decided randomly or by picking numbers out of a hat____As for the next player? This person can either “steal” the first person's gift or choose an unwrapped item from the pile. Each gift can be stolen only three times before it is considered "dead".

    ____Any person that has to give up a gift can also pick a new gift or steal one from another person. Each turn is only allowed three swaps between the current player and the previous players. The game won't finish until all the presents are opened.

A. It all depends on how the game is organized.

B. This process is repeated until the game is over.

C. Don't forget that the game's purpose is to have fun.

D. The first player then opens the gift in front of everyone.

E. White elephant gift exchange can be run in different ways.

F. The goal of the party is usually entertainment rather than gain.

G. Trinkets, unidentifiable kitchen items and toys are typical “white elephants” .