单项选择题
In a weather report, position good means that the position is（）.
A.a good one B.reliable C.is easy to be fixed D.obtainable
单项选择题 In a weather report,Z stands for（）.
单项选择题 In admiralty sailing directions, bands is the word used to indicate（）marking.
单项选择题 In admiralty sailing directions, stripes is the word used to indicate（）marking.
