题干
—Good morning, sir. Can I help you?
—I’d like a barbecue together with a cup of orange juice. How much do you ?
—I’d like a barbecue together with a cup of orange juice. How much do you ?
A：pay
B：offer
C：owe
D：charge
答案(点此获取答案解析）
D
所对的圆心角∠CDE=90°，将图形ABCE绕AE所在直线旋转一周，形成的几何体的表面积为
