德国安全认证标志的英文缩写是( )。
A．GS
B．UL
C．EPA
D．CCC
参考答案：A
Spoken English slightly differs from country to country. For instance, in some parts of the US the “r” sounds at the end of the words______.
A．is dropped
B．have dropped
C．has dropped
D．are dropped
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