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

<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>