听力原文：When did president John Adams start the library？
When did president John Adans start the library？
He started the library in __________
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比较中国近代教育的“中体西用”与日本教育的“和魂洋才”之差异及历史作用。
Which of the protocols below use TCP at the transport layer？ (Select four)
A. TFTP
B. SMTP
C. SNMP
D. FTP
E. HTTP
F. HTTPS
Which of the following can lead to the contribution of LAN traffic congestion？(Select all that apply)
A. Too many hosts in a broadcast domain
B. Full duplex operation
C. Broadcast storms
D. Multicasting
E. Segmentation
F. Low bandwidth
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