是不是1-9號幹線都是高速公路?

The answer is no.

1. As an example, Route 7 does not contain any expressway portions:

http://zh.wikipedia.org/wiki/%E9%A6%99%E6%B8%AF7%E8%99%9F%E5%B9%B9%E7%B7%9A

2. All tunnels are under a specialized control area away from expressway.

好似5係架......