现有氨基酸800个，其中氨基总数为810个，羧基总数为808个，则由这些氨基酸合成的含有2条肽链的蛋白质共有肽键、氨基和羧基的数目依次分别为w_w w. k#s5_u.c o*m

题干

A：798、2和2

B：798、12和10

C：799、1和1

D：799、11和9

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B

	Population (million)	% of Income(收入) spent on food	Persons Per room	% of houses With water And electricity	Telephones per 100 people	% of children in High schools
Tokyo	28.7	18	0.9	100	44	97
Mexico City	19.4	41	1.9	94	6	62
New York	17.4	16	0.5	99	56	95
St.Paul	17.2	50	0.8	100	16	67
Osaka	16.8	18	0.6	98	42	97
Seoul	15.8	34	2.0	100	22	90
Moscow	13.2	33	1.3	100	39	100
Bombay	12.9	57	4.2	85	5	49
Calcutta	12.8	60	3.0	57	2	49
Buenos Aires	12.4	40	1.3	86	14	51
Los Angeles	11.5	12	0.5	94	35	90
London	11.0	24	0.6	100	50	58