She'd lowered her voice until it was barely _____.

A . Voice VLAN的工作模式包含自动和手动两种 B . 自动模式下，系统会识别IP Phone发出的报文，如果匹配为语音报文，则将连接IP Phone的端口加入V.oice VLAN C . 手动模式下，需要手工将IP Phone加入Voice VLAN中 D . 手动模式下系统将不会向端口下发ACL

A . DSL with 128k uplink /128k downlink B . cable with 256k uplink /256k downlink C . DSL with 128k uplink /768k downlink D . cable with 256k uplink /1.4M downlink

A . 正确 B . 错误

A . Voice VLAN的工作模式包含自动和手动两种 B . 自动模式下，系统会识别IP Phone发出的报文，如果匹配为语音报文，则将连接IP Phone的端口加入Voice VLAN C . 手动模式下，需要手工将IP Phone加入Voice VLAN中 D . 手动模式下，系统将不会向端口下发ACL

A．she was able to make herself hear B．was she able to make herself hear C．she was able to make herself heard D．was she able to make herself heard

A、Santa B、his Mom C、his Dad D、the C、onductor

A、pleased; pleasing; pleaure B、pleased; pleasant; a pleasure C、pleasing; pleased; a pleasure D、pleasing; pleasant; pleasure

A．though B．although C．despite D．despite of

Florida's E-school attracts many students who need flexible scheduling, from young tennis stars and young musicians to brothers Tobias and Tyler Heeb, who take turns working on the computer while helping out. with their family's clam-farming business on Pine Island, off Florida's southwest coast. Home-schoolers also are well represented. Most students live in Florida, but 55 hail from West Virginia, where a severe teacher shortage makes it hard for many students to take advanced classes. Seven kids from Texas and four from Shanghai round out the student body. The great majority of Florida Virtual Schoolers—80 percent—are enrolled in regular Florida public or private high schools. Some are busy overachievers. Others are retaking classes they barely passed the first time. The school's biggest challenge is making sure that students aren't left to sink or swim on their own. After the school experienced a disappointing course completion rate of just 50 percent in its early years,Executive Director Julie Young made a priority out of what she calls "relationship-building," asking teachers to stay in frequent E-mail and phone contact with their students. That personal touch has helped. The completion rate is now 80 percent. Critics of online classes say that while they may have a limited place, they are a poor substitute for the face-to-face contact and socialization that take place in brick-and-mortar classrooms. Despite opportunities for online chats, some virtual students say they'd prefer to have more interaction with their peers. Students and parents are quick to acknowledge that virtual schooling isn't for everyone. "If your child's not focused and motivated, I can only imagine it would be a nightmare," says Patricia Haygood of Orlando, whose two daughters are thriving at the Florida school. For those who have what it takes, however, virtual learning fills an important niche. "I can work at my own pace, on my own time," says Hackney. "It's the ultimate in student responsibility." Kimberly Rugh Talked about her son's birthday party ______ . A．with her friends B．with her colleagues C．in the classroom D．in an E-mail massage sent to her students

A．The voice is too weak． B．The sound is too louD C．The volume is out of order．

A．VHF3收发机在话音方式下工作 B．数据链通讯中断 C．A+B

A．A.a total blank B．B.agitated C．C.confused D．D.sharp

A．1.05 B．1.10 C．0.975 D．0.95

A．Ⅰ B．Ⅱ C．Ⅲ D．Ⅳ