下列有关细胞的叙述，错误的是（　　）

阅读下面这首古诗，完成后面小题。

秋海棠

袁枚

小朵娇红窈窕姿，独含秋气发花迟。

暗中自有清香在，不是幽人不得知。

注：袁枚，三十多岁以后不再出仕，过了几十年悠游林泉山野的闲适生活。

    Cindy, Jerry and Mary are giving their ideas about what a good friend should be like.

    Cindy: I think a good friend should be honest(诚实).That's the most important thing and is where a real friendship(友谊) starts. If a friend isn't honest, he may lost his friends' trust.

    Jerry: I think a good friend should be generous. Here “generous” doesn't mean he has to give his friends his money or his clothes. It means he should share his ideas and feelings with his friends. So, his friends can know him better in this way.

    Mary: For me, a good friend should understand his friends. When there's something bad between him and his friends, he must put himself in his friends' place and think more for his friends.

如图所示，先用绳子把一个铁锁悬挂起来，然后把铁锁拿近自己的鼻子，稳定后松手，头不动，铁锁向前摆去又摆回来，直到最后停下．下列说法正确的是（　　）

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