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【单选题】
家用铁锅用水清洗放置后，出现红棕色的锈斑，在此变化过程中不发生的化学反应是 [ ]A.
4Fe(OH) 2 +2H 2 O+O 2 =4Fe(OH) 3 ↓
B.
2Fe+2H 2 O+O 2 =2Fe(OH) 2 ↓
C.
2H 2 O+O 2 +4e - =4OH -
D.
Fe－3e - =Fe 3+
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【单选题】When you are travelling ______, you often need to stay in a hotel.
A.
if on business or for pleasure
B.
whether on business or for pleasure
C.
whether business or pleasure
D.
on business or pleasure
【多选题】采用分区分类货位编号保管方法的优点有:
A.
有利于提高工作效率
B.
便于药品养护和盘点
C.
利于掌握和控制药品存量
D.
便于计算机管理
E.
有利于提高保管技术水平
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A.
conclude your speech by urging the audience to take immediate action.
B.
deal with all three basic issues of need, plan and particularity.
C.
concentrate on convincing listeners who already share your view.
D.
justify your value judgment against a set of standards or criteria.
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