⑴big ____ A.
⑵small ____ B.
⑶short ____ C.
⑷long ____ D.
手足口病是由多种肠道病毒引起的常见传染病,病人大多为5岁以下的婴幼儿,患者的症状为手、足和口腔等部位出现疱疹(如图所示)。下列有关叙述正确的是
21×6=____
20×6=____
32×4=____
27×3=____
_______ Lily _______ Sam likes popular songs, so they went to Lin Feng's concert together last night.