A:大于0°
B:小于0°
C:等于0°
D:因地而异
根据句意和汉语注释,写出单词的正确形式。(1)Guangdong is in the ____ (north) part of the city(2)She danced so ____ (beauty) that everyone clapped their hands.(3)Look! Their____ (wife) are waving to them(4)Do you think noise ____ (pollute) is a terrible problem?
一条绳子正好围成一个长是8分米,宽是6分米的长方形,改围成一个正方形,它的边长应该是____分米。