轮胎尺寸21.00--33中，21.00表示（）。
A.轮胎气压
B.轮辋宽度
C.轮胎断面宽度
参考答案：C
— Hi, David! How was your trip to Beijing?
— Wonderful! I had never had ________ holiday in my life.[ ]
A. a most exciting
B. a more exciting
C. the most excited
D. the more excited
教师职业道德修养的方法教师的职业实践是进行职业道德修养的根本途径，教师职业道德修养的方法有哪几种？
