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问题 判断题

亚欧大陆桥运输是指国际集装箱从东亚、东南亚国家或地区由海运或陆运进入我国口岸，再经公路运往蒙古、欧洲、中东等国家和地区或相反方向的过境运输。( )

答案

参考答案：对

问答题 简答题

荷兰无土栽培的特点。
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单项选择题

Network managers have long (140) practical voice-over-IP (VOIP) solutions. VOIP (141) ease network management and decreases costs by converging a company’s telephony and data infrastructures into one network. And a VOIP solution implemented at a company’s head-quarters with far-reaching branch offices can (142) tremendous amounts of (143) in long distance phone bills, provided that solution delivers POTS-like voice (144) over the Internet.

（144）是（）

A.frequency

B.length

C.quality

D.quantity
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