Classification of vowels is made up of the following EXCEPT()。
A. the openness of the mouth
B. the position of the tongue
C. the shape of the tip
D. the width of the vowel
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爱立信公司自动测试系统TA是()软件发展而来。
A. Channel Event Recording (CER)
B. Cellular Network Analyzer (CeNA)
Cellular Network Administration (CNA)
D. TEst Mobile System (TEMS)
中国共产主义青年团团徽绶带上写着五个字()。
A. 中国共青团
B. 共青团团徽
C. 中国青年团