问题
单项选择题
A splice that can be used in running rigging，where the line will pass through blocks，is a（）.
A.Short splice
B.Long splice
C.Back splice
D.Spindle splice
答案
参考答案：B
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A splice that can be used in running rigging，where the line will pass through blocks，is a（）.
A.Short splice
B.Long splice
C.Back splice
D.Spindle splice
参考答案：B
近中扭转近90°，且伴有唇侧倾斜，牙髓正常，牙龈无退缩，牙龈无红肿，全牙列轻度拥挤，覆、覆盖正常