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

<ins id="nnrft"></ins>

單項(xiàng)選擇題

The designed （） is 20 tons per day, but the fresh water generator can only distil 15 tons at present.

A.displacement
B.weight
C.power
D.capacity

你可能感興趣的試題

單項(xiàng)選擇題

The defective places in the furnace （） with fire bricks.

A.should be paved
B.should be cleaned
C.should be dismantled
D.should be welded

單項(xiàng)選擇題

After fitting back in place the gear wheels, don’t forget to （） them.

A.fulfill
B.eliminate
C.grease
D.bend

<pre id="l42mw"><strong id="l42mw"></strong></pre>

<em id="l42mw"></em><strong id="l42mw"></strong>

<pre id="l42mw"><strong id="l42mw"></strong></pre>