How should you signal the crane operator to lower the boom and raise the load?(). ["Extend arm and point finger in the direction to move the boom","Extend arm with the thumb pointing downward and flex fingers in and out","With f rearm vertical and forefinger pointing up,move hand in small horizond circles","With arm extended downwards and forefinger pointing down,move hand in small horizontal circle"]
()就是按照一定的研究目的,通过运用各种科学的方法和经验研究手段,有步骤地实地考察有关的现象,收集大量的、具体的事实,在对这些资料进行定性和定量分析的基础上,探索现象发生、发展、变化的规律的一种自觉认识活动。 ["重点访谈","深度访谈","客观陈述法","座谈会"]
某一报纸的发行量为1000000份,其对广告的收费政策如下:一版广告的收费为2500元,新客户可以享受八折优惠。经调查,该报纸的阅读者中,有80%的人将阅读广告。则某客户第一次选择在该报纸上做的一版广告的千人成本是多少?
人民币七天通知存款起存金额为()元,多存不限。 ["A.100000","B.50000","C.20000","D.10000"]
简述一体化增长战略中的前向一体化战略。
简述统一品牌商标策略及其好处。