对等层实体之间采用()进行通信
参考答案:协议
下述哪一项不属于视动性反射检查()
A.OKN
B.扫视试验
C.平衡跟踪试验
D.注视试验
E.慢谐波加速度试验
用所给词的适当形式填空。
1. A tractor goes______(fast) than a bike.
2. They don’t use animals to do farm work any ______(many).
3. Which do you like ______(good),this one or that one?
4. The girl is ______(beautiful) in the class.