根据中文提示完成对话。

Zhang Peng: Excuse me, where is the 1___________ (图书馆)?

Policeman: It's east of the 2___________ (公园).

Zhang Peng: How can I get there?

Policeman: First, turn 3___________ (右) and take the 4___________ (8路公共汽车). Then

                5___________ (直走) for 5 minutes. You'll be in front of the library.

Zhang Peng: Thank you.

Policeman: You're welcome.

在广域网中，___________标准规定的速率为1.5Mbps。