So typically, it follows the pattern of a b a c b c.

所以它遵循 a b a c b c 的模式。

That may be the easiest, kind of just the A, B, A idea.

对 最简单的A B A模式。

Is just ternary form, a, b, a with the second and final a slightly modified.

那就是三段式 a b a在第二部分和最后一部分会有小小的改动。

Up, down, down, left, right, left, right. A, B, A, A, A!

- 上、下、下、左、右、左、右。甲，乙，甲，甲，甲！

But when was it discovered? Was it in: a) 1966 a) 1966 b) 1976 or b) 1976 c) 1986 c) 1986 Well, I'm not really sure but I'm gonna go with answer (b) 1976.

你知道这种病毒是在什么时候被发现的吗？好吧，我不太确定，那我就选(b) 1976吧。