A:turned; have scored
B:turned; had scored
C:had turned; have scored
D:had turned; had scored
如图中,图甲X表示人体某器官,①、②表示血管,箭头表示血流方向,图乙表示血管①、②中血液的气体含量,下列判断错误的是( )
李华的家在马路边,人来车往的噪声严重影响了他在家学习,请你想办法来帮助李华减弱干扰他的噪声(至少2个具体办法)。