要使算式“473÷4□”的商是两位数,“□”里最大可以填____
判断下列句子的对错
①松鼠是食肉动物。____ ②松鼠不爱下水。____
③松鼠最像四足兽。____ ④松鼠在冬天就蛰伏不动。____
At the beginning of the 20th century, many people thought that the family was falling apart—__________, they thought it was dying. ( )
当我们遇到挫折时,不正确的做法是( )
“地上河”景观出现在下列哪个地区( )