下面代码的输出结果是 d={"大海":"蓝色","天空":"灰色","大地":"黑色 "}print(d["大地"],d.get("大地","黄色"))
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧