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问题 单项选择题 A1/A2型题

某药厂生产的维生素C要外销到英国，其质量的控制应根据（）

A.企业内部标准

B.中华人民共和国药典

C.局颁标准

D.地方标准

E.英国药典

答案

参考答案：E

解析：药物在哪一国经销、消费，其质量应符合该国的国家药品标准。

单项选择题

Bluetooth is a universal radio interface in the (1) frequency hand that enables portable electronic devices to connect and communicate wirelessly via short-range, ad hoc networks. Each unit can simultaneously communicate with up to (2) other units per piconet. Moreover, each unit can simultaneously (3) to several piconets. Eliminates the need for wires, cables and connectors for and between cordless or mobile phones, modems, headsets, PDAs, Computers, printers, projectors, local area networks, and so on, and paves the way for new and completely different devices and applications. Technology Characteristics (4) symbol rate exploits maximum available (5) bandwidth。

3（）

A．conformance

B．relate

C．belong

D．secrecy
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单项选择题

螺钉旋具（螺丝刀）的规格，是按其（）来划分的。

A.长度

B.宽度

C.直径

D.厚度
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