题目

人的血红蛋白由四条肽链组成，在合成该蛋白质的过程中，脱下了570分子的水。问控制合成该蛋白质基因中有多少个碱基                                                   A.570×6    B.570×3          C.574×6          D.574×3 答案：C （2010·湖南醴陵二中高三上第二次月考）      30. My money ________ , so I must go to the bank to draw some of savings out before I’ve none in hand. A. is being run out        B. has been run out C. is running out                  D. has run out