6. 题干： 下列哪种交叉相遇态势易与对遇局面相混：

Which one of the following anchor orders is uncommon term for using？

A helmsman receives the command “Right 15 degrees rudder”. The helmsman＇s IMMEDIATE reply should be ________.

We _____ at anchor in the roadstead till the evening.

PORT A BIT SLUGGISH means that port rudder ______.

A spring line is ______.

If the pilot gives the order“How answer？” You may report “________”．

It is sometimes necessary to moor bow and stern to two mooring buoys in order to _______．

Avast means _______.

You must ______ your cable to 5 shackles.

When the movement of engine is no longer required the pilot usually gives the order like this “_______”．