纤维耐热性
参考答案：
是指纤维经热作用后力学性能的保持性。
Though I am improving in my study,I still have a long way to go ________ some of my classmates.
A．to compare with
B．to compare to
C．comparing with
D．compared with
一条小河平均水深是110厘米，小明说他身高140厘米，下河没有危险．______．（判断对错）
