单项选择题

检验证书的样式标准、制作精美能证明出具证书机构的合法性和准确性。( )

A．对
B．错

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单项选择题

The following statement about mechanical strain gauge is correct. （） A. Need arrange the measuring points B. Need the power supply C. can read it directly D. There is no guide plate

不定项选择

Phonology is concerned with how the sounds can be classified into different categories.

A．正确
B．错误