97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

<pre id="tdl9l"><strong id="tdl9l"></strong></pre>

<ruby id="tdl9l"><output id="tdl9l"></output></ruby>

<dl id="tdl9l"></dl>

單項(xiàng)選擇題

Upon the completion of required tests, a （） should be placed on each extinguisher, showing the date and the person who completed the tests.

A.cap
B.disc
C.tag
D.cover

你可能感興趣的試題

單項(xiàng)選擇題

If you must enter a room or compartment to combat the fire, keep an escape path （）.

A.open
B.close
C.opens
D.closes

單項(xiàng)選擇題

According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is （）.

A.welcome
B.admitted in some special sea areas
C.prohibited
D.acceptable

<blockquote id="kc5kx"><acronym id="kc5kx"><div id="kc5kx"></div></acronym></blockquote><pre id="kc5kx"><strong id="kc5kx"></strong></pre>

<dl id="kc5kx"><acronym id="kc5kx"></acronym></dl>