99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

<pre id="mpe5z"><strong id="mpe5z"></strong></pre>

<ins id="mpe5z"></ins>

單項(xiàng)選擇題

Water can put out common fires, such as （）.

A.wood，paper
B.textile
C.A+B
D.oil

你可能感興趣的試題

單項(xiàng)選擇題

For the duties （）in one emergency, one person may do more than one job and one job may be done by more than one person.

A.assigning
B.assign
C.toassign
D.assigned

單項(xiàng)選擇題

Seven short blasts continued for one minute means （）.

A. fire alarm
B. boat alarm
C. man overboard
D. emergency alarm

<pre id="pdgi5"><strong id="pdgi5"></strong></pre>

<dd id="pdgi5"></dd>

<ruby id="pdgi5"><xmp id="pdgi5"></xmp></ruby>