<samp id="qec8c"><tfoot id="qec8c"></tfoot></samp>

<samp id="qec8c"><tbody id="qec8c"></tbody></samp>

<ul id="qec8c"><tbody id="qec8c"></tbody></ul><strike id="qec8c"><s id="qec8c"></s></strike>

<samp id="qec8c"><tfoot id="qec8c"></tfoot></samp>

判斷題

黑火藥是用硝酸鉀、炭粉和硫磺或用硝酸鉀和炭粉為原材料制成的一種煙火藥。

答案：正確

你可能感興趣的試題

行政規(guī)章不屬于法律。

答案：錯誤

行政法規(guī)是國家行政機關制定的規(guī)范性文件的總稱。

答案：正確

<strike id="mim0s"><s id="mim0s"></s></strike>

<samp id="mim0s"><tbody id="mim0s"></tbody></samp>