蛋白质分子为肽酶所分解，分解情况决定于肽酶使哪一个肽键断裂。肽酶P能使带有基团R₄和相邻氨基酸的—NH—基团之间的肽键分开。P将打断下图中的哪一个键(　　)

西南政法大学教授周国平在《尊重生命》中有这么一句经典的名言“热爱生命是幸福之本；同情生命是道德之本；敬畏生命是信仰之本。”下列观点与此相符的是

如图是正方体的平面展开图，则在这个正方体中，以下四个判断中，正确的序号是____．

①BM与ED平行；②CN与BE是异面直线；③CN与BM成60°角；④DM与BN是异面直线．

阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。

Alice : What do you think of the people in our class ?I think most of them are kind .

Johnson : I think ____,too. But I don't like Mark. He is so self-important. I dislike this kind of  people.

Alice : Mike is fascinating . I'm fond ____people who have something intelligent to say.

Johnson : Carol is fun to be with . I really look forward to ____(hear ) her jokes. What do you think of Tom ?

Alice : He is all right. But I don't like him. .What do you think of him ?

Johnson : I think he is OK. He is very quiet, so ____is hard to know what kind of person he really is.

Alice : I like John ____she is a very interesting girl and crazy about boy bands.

Johnson : Really ? I'm mad on them too. I should get to know her better. Are you ____（interest ) in music ?

Alice : I think that dance music is excellent. I love going to a disco and dancing to the music. I enjoy ____( meet ) new people there .

Johnson : My parents hate dance music . If I play it at home , they always complain. Are your parents ____same?

Alice : My mom ____(hate ) it , but my dad thinks it's OK.  He doesn't mind as ____as I don't play the music too loud .

-- May I speak to Mr Smith?

--          , please. Here he comes.