题目内容

部门级认证中心为客户提供身份认证、交易认证和文件证实等服务,它隶属于()

A. 国家级认证中心
B. 政府级认证中心
C. 组织级认证中心
D. 地方级认证中心

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社会保险以()为基础。

A. 支配权利
B. 精神权利
C. 物质权利
D. 劳动权利

When we produce _______ , there is no obstruction or narrowing in the air passage, no

A. consonants
B. vowels
C. pure vowels
D. diphthongs

In any language, speech sounds are classified into two kinds: vowels and consonants.()

The importance of pronunciation lies in mastering the _______distinctions and the different meanings that are signaled by the phonetic features.

A. grammatical
B. syntactic
C. functional
D. Lexical

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