题目内容

When experiencing heavy winds，you should reef sails to（）.

A. bring the sails parallel to the wind
B. reduce sail area exposed to the wind
C. allow the sails to catch more wind
D. remove all tension on the main and jib sheet

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A. 不变
B. 弯曲
C. 降低
D. 升高

A. 利多卡因
B. 苯妥英钠
C. 普鲁卡因胺
D. 奎尼丁
E. 洋地黄

A. 加密命令消息(CIPHER MODE COMMAND)
B. 鉴权请求消息(AUTHENTICATION REQUEST)
C. 鉴权响应消息(AUTHENTICATION RESPONSE)
D. 加密结束消息(CIPHER MODE COMPLETE)