A towing light，according to the Rules，

1、A tow bridle is attached to the main t

A tow bridle is attached to the main tow hawser at the（）.Abight ringBtow hookCfishplateDswivel

2、According to the passage，a high IQ is_

According to the passage，a high IQ is______.A instinctualB painstakingly learntC inbornD more trivial than people sense

3、The period of a lighted aid to navigat

The period of a lighted aid to navigation refers to the（）.Adate of construction or establishmentBlength of time between flashes of the lightCtime required for the longest flash of each cycleDtime required for the light to complete each cycle

4、When connecting the tow bridle to a tu

When connecting the tow bridle to a tug, the end of the bridle is passed with a（）.Aheaving lineBshot lineChigh lineDmessenger line

5、According to the Rules，a vessel’s leng

According to the Rules，a vessel’s length is her（）.Alength between the perpendicularsBlength along the waterlineClength overallDregistered length

6、The Light List shows a lighted aid to

The Light List shows a lighted aid to navigation on the left bank. This means that the light can be seen on the starboard side of a vessel（）.Aascending the riverBdescending the riverCcrossing the riverDproceeding towards sea