— Jim's mother dislikes cartoons in the Past, but now she likes to watch them with little Jim.
— Oh, just as the saying goes, .
A:East, west, home is best
B:Every dog has its day
C:Better late than never
D:love me, love my dog
将人类的红细胞置于不同浓度的蔗糖溶液中,浸泡半小时之后的结果如图,依照细胞外形的变化判断蔗糖溶液的浓度,由高到低排列,正确的是( )
夏季是细菌性痢疾的多发季节,为预防该传染病的发生与流行,防疫部门严禁学校食堂二次销售部分剩余饭菜,该传染病的类型和防疫部门要求的防护措施分别属于( )
如图,已知BC∥DE,则下列说法中不正确的是 ( )