如下图所示，3com和Cisco公司的交换机相互连接，在两台交换机之间需传输VLAN ID为1、10、20和30的5个VLAN信息，Catalyst3548交换机VLAN Trunk的正确配置是______。
A. Switch-3548(config-if) #switchport trunk encapsulation dotlq Switch-3548(config-if) #switchport trunk allowed vlan 1，10，20，30
B. Switch-3548(config-if) #switchport mode trunk Switch-3548(config-if) #switchport trunk encapsulation is1 Switch-3548(config-if) #switchport trunk allowed vlan 1-30
C. Switch-3548(config-if) #switchport mode trunk Switch-3548(config-if) #swhchport trunk encapsulation negotiate Switch-3548(config-if) #switehport trunk allowed vlan 1-30
D. Switch-3548(config-if) #switchport mode trunk Switch-3548(config-if) #switchport trunk encapsulation dotlq Switch-3548(config-if) #switchport trunk allowed vlan 1，10，20，30
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Nine cities in Asia received a courtesy test, and regrettably eight cities, with the exception of Hong Kong finished in the bottom 11 in the rankings.
A. Y
B. N
C. NG
(34)
A. High school students are using electronic forms to apply for colleges.
B. High school students are sending more applications compared with the past.
C. The number of high school students’entering college is increasing.
D. High school students have to wait for the admission from top schools.
听力原文：Why should flavorings be put in the dough？
(22)
A. To keep it longer.
B. To make it rougher.
C. To give it a particular taste.
D. To fasten the process.
听力原文：What will the students be asked to do in the woman's come？
(25)
A. Paint a picture.
B. Take a mid-term exam.
C. Give an oral report.
D. Buy painting tools.
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