题目

There’s a science to setting goals. Below, we share some research-backed tips to help you carry out successful goals.     Choose a goal that   61   (matter), not just easy win. A meaningful goal—   62   that truly inspires you to change—requires going deeper. Think about what you want in the coming year, then ask yourself why you want that. For example, if you want to quit   63   (smoke), ask why do you want to quit? Then, if you want to quit for your health, ask why do you want good health? Set up your goals positively. How you describe your goal makes a big金属晶体的下列性质中，不能用金属晶体结构加以解释的是（　　）A.易导电B.易导热C.有延展性D.易锈蚀