题目

Australia _____the sixth largest（最大的）country ______ the world. ______ capital of Australia is Canberra, and Sydney is its biggest（最大的）_______. Australia’s seasons ______ different from China’s. Summer is _____ December to February, and winter is _____ June, July and August. So when ______ spring in China, it is autumn in Australia. In the middle of Australia, it’s _______ dry and hot. Sometimes it’s 45 ℃. But in some places there is snow in winter. Autumn is from ______ to May. It’s the most beautiful（最漂亮的）season in Australia. 1. A. am        湘潭军分区的抗洪抢险战士从湘江打捞重物，他们使用了如图所示的两个滑轮．要最省力，用来穿绕滑轮组的绳子应如何绕法？请你在图中画出来．