单项选择题
The lay of a line refers to（）.
A.its normal location of stowage B.the direction of twist in the strands C.the manner in which it is coiled D.the manner in which it is rigged
单项选择题 The grooved wheel inside a block is called a（）.
单项选择题 The cheek length of a block in inches should be about（）.
单项选择题 The 12-foot low-velocity fog applicator（）.
