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
Chafing gear(防摩擦装置) is used to______．
A. anchor the boat
B. pick up heavy loads
C. protect fiber rope from abrasion
D. strengthen mooring lines
In midocean，the characteristics of a wave are determined by three factors．What is NOT one
A. Effect of the moon’s gravity
B. Fetch
C. Wind velocity
D. Length of time a wind has been blowing
少年王勃写《滕王阁序》是“援笔成篇，不易一字”，我们写诗也最好是一气呵成，不宜反复增删。()
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