题干
选择正确的图画，把图画的序号填在括号内
①This is a monkey. It has a long tail. It's thin. ____
②Look at the giraffe . It has long legs and a small head. It's so tall. ____
③This is a panda.It has big eyes and a short tail. It's black and white.____
④Look at the elephant. It has a big body and a long nose. It is so fat.____
⑤I have a duck. It has a big mouth. It's small.____
答案(点此获取答案解析）
D,C,A,E,B
”的图案，如图2所示，再将剪下的两个小矩形拼成一个新的矩形，如图3所示，则新矩形的周长可表示为（ ） 