题目内容

How should you signal the crane operator to hoist（）.

A. With forearm vertical and forefinger pointing up，move hand in small horizontal circles
B. With arm extended downwards and forefinger pointing down，move hand in small horizontal circles
C. Extend arm with fingers closed and thumb pointing upward
D. Place both fists in front of body with the thumbs pointing upward

查看答案

搜索结果不匹配？点我反馈

更多问题

A. 正确
B. 错误

A. 100
B. 80
C. 90

A. 基本存款账户
B. 一般存款账户
C. 专用存款账户
D. 临时存款账户

A. Internet、本地Intranet、受信任站点、受限制站点
B. 受限制站点、Internet、本地Intranet、受信任站点
C. 受信任站点、Internet、受限制站点、本地Intranet
D. 受信任站点、本地Intranet、Internet、受限制站点