题目内容

我国公司在美国证券市场上发行的存托凭证仅限于二级有保荐的存托凭证。（）

查看答案

搜索结果不匹配？点我反馈

更多问题

从供选择的答案中选出应填入下面一段英文中______内的正确答案。
Bluetooth is a telecommunications industry(1)specification that describes how mobile phones, computers, and personal digital assistants (PDAs) can be easily interconnected using a short-range(2)wireless connection. Using this technology, users of cellular phones, pagers, and personal digital assistants can buy a three-in-one phone that can(3)double as a portable phone at home or in the office, get quickly(4)synchronized with information in a desktop or notebook computer, initiate the sending or receiving of a fax, initiate a print-out, and, in general, have all mobile and fixed computer devices be totally(5)coordinated.
Bluetooth requires that a low-cost transceiver chip be included in each device. The transceiver(6)transmits and receives in a previously unused frequency band of 2.45 GHz that is available(7)globally (with some variation of bandwidth in different countries), In addition to data, up to three voice(8)channels are available. Each device has a unique 48-bit address from the IEEE 802 standard. Connections can be point-to-point or(9)multipoint. The maximum range is 10 meters. Data can be exchanged at a rate of 1 megabit per second (up to 2 Mbps in the second generation of the technology). A frequency hop scheme allows devices to(10)communicate even in areas with a great deal of electromagnetic interference. Built-in encryption and verification is provided.
供选择的答案：
1．globally 2．coordinated 3．multipoint 4．communicate 5．specification
6．transmits 7．wireless 8．double 9．channels 10．synchronized

根据给出的中文意思，写出短语：防火墙

写出以下单词的中文意思：connectivity n.

证券从业人员拒绝中国证券业协会调查或者检查的，由中国证券业协会责令改正；拒不改正的，给予纪律处分；情节严重的，由中国证监会给予从业人员暂停执业3～6个月，或者吊销其执业证书的处罚。（）