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

<ruby id="ayedw"><small id="ayedw"><sup id="ayedw"></sup></small></ruby>

<pre id="ayedw"><strong id="ayedw"></strong></pre><blockquote id="ayedw"></blockquote>

<sup id="ayedw"></sup>

<ruby id="ayedw"><small id="ayedw"><b id="ayedw"></b></small></ruby>

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

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

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

單項選擇題

The irregular black line around a charted light such as Race Rock Light indicates that it is （）.

A.unwatched
B.surrounded by riprap
C.a minor light
D.constructed on an artificial island

你可能感興趣的試題

單項選擇題

The horizontal flat surfaces where the upper stock joins the rudder are the（）.

A.rudder keys
B.rudder palms
C.lifting flanges
D.shoes of the rudder

單項選擇題

The grip of a joint represents the（）.

A.thickness of the connected members
B.diameter of the head
C.entire length of the rivet
D.diameter of the shank

<ruby id="gcl43"><output id="gcl43"></output></ruby>

<pre id="gcl43"><legend id="gcl43"><div id="gcl43"></div></legend></pre>