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SQL语言完成核心功能只用了9个动词，其中完成数据控制功能的动词是GRANT和【9】。

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Be Clean, Be GreenDear Guests,Each year, many of the major waterways in the world get polluted by vast amounts of detergents used to wash bed linen and towels in hotels.In an effort to help preserve the environment, we’d like to ask all of our guests to please leave the towels that you intend to re-use on the towel rack and place those towels you want exchanged in the bathtub.May we also ask that you leave this card on the bed if you do not require your bed linens changed ？We’d like to thank you for your cooperation in helping to improve our environment.The Management What is being asked of those who do not want their bed sheets changed to do ？（）

A. Call the management staff
B. Talk to the hotel maid
C. Leave a do-not-disturb sign on the door
D. Place the card on the bed

能够减小高压变压器体积的主电路工作方式是上附着紧密，功能不活跃。

A. 主电路工作方式
B. 高压整流方式
C. 电源相数
D. 逆变式
E. 电容充放电式

3岁患儿，曾多次患肺炎，平时无发绀。查体：心前区隆起，心尖搏动弥散，胸骨左缘第2肋间闻及Ⅲ级粗糙的连续性机器样杂音，向颈部传导，有震颧，有水冲脉。心电图可能的结果是

A. 右心室肥厚
B. 右心房肥大
C. 左心室肥厚
D. 不完全性右束支阻滞
E. 左束支阻滞

脊柱区是指脊柱及其后外侧软组织所配布的区域，其上界为枕外隆凸和上项线，下端至尾骨尖，两侧自上而下分别为斜方肌前上缘、三角肌后缘上份、腋后线、髂嵴后份以及髂后上棘与尾骨尖的连线。腹腔干平对

A. 第1腰椎上部
B. 第胸5/6椎间盘
C. 第8胸椎体下缘
D. 第2腰椎上部
E. 第3腰椎上部