单项选择题
To reduce the number of strakes at the bow，two strakes are tapered and joined at their ends by a single plate. This plate is known as a（）.
A.cover plate B.joiner C.lap strake D.stealer plate
单项选择题 Those ship’s tanks that are particularly important for trimming the ship are the（）.
单项选择题 The words PIPE，BUTT，TUN AND PUNCHEON all refer to（）.
单项选择题 The welds used to join shell plates in flush construction are known as（）.
