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="xm72s"><output id="xm72s"></output></ruby>

單項選擇題

When it is advisable to remain on VHF channel 14 you should say（）.

A.stand by on VHF channel 14
B.come to VHF channel 14
C.VHF channel 14 is the best place for you to stay by
D.remain in channel 14 and do not change

你可能感興趣的試題

單項選擇題

（）is the most liable to spontaneous combustion.

A.Cement
B.Chinaware
C.Fish meal
D.Steel products

單項選擇題

（）my knowledge the figure at the loading port is not quite accurate.

A.At
B.In
C.To
D.With

<em id="9327n"></em>

<em id="9327n"></em>