题目

定积分的值为__________.                      答案：C用表示季节的词补全句子，并在图片下面写出对应句子的序号。1. I can go swimming and eat ice cream in ______.2. I like _____. It’s cool and the colours are pretty3. It’s windy and warm in______. I often go hiking with my friends.4. It’s cold, and it snows sometimes in ______. ( ) ( ) ( ) ( )