TCP
参考答案：
传输控制协议，是面向连接的，在收发数据前和对方建立一个可靠的连接。
下列不属于复合材料的性能的是 [ ]
A．强度高
B．密度大
C．耐高温
D．耐腐蚀
My hobby is changing all the time. Now I am _____ in collecting coins. It's _____ and valuable. [ ]
A. interesting; interested
B . interested; interesting
C. interested; interest
D. interest; interesting
