皮皮学，免费搜题
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搜题
【单选题】
抛锚作业时,当长度为 水深时,锚链刹住,利用船后退的拉力使锚爪入土。A.
1.5倍
B.
2.5倍
C.
3倍
D.
3.5倍
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】According to the passage, the function of Brief Strategic Family Therapy is to ______.
A.
establish the closer relationship within family
B.
cure diseases caused by drug abuse
C.
help family members live with mutual understanding
D.
treat adolescent drug use