If you look at the earth, you will notice that over 75 % of our blue planet is water. But the problem is only 3% of that water is ________water.
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What once was a booming town that relied on the Ogallala Aquifer, has now seen its depths of underground water ____ between 0-50 feet. Many wells are completely ______ and farmers have been forced to hand over their ______ to the government’s Conservation Reserve Program (CRP) in exchange for grants.
在幻灯片母板中插入的对象,只能在()中可以修改
A. 幻灯片视图
B. 幻灯片母板
C. 讲义母板
D. 大纲视图
PowerPoint2016中,系统为演示文稿提供了四种母版:幻灯片母板版、标题母版、讲义母版和备注母版。( )
A. 对
B. 错
有“呕家圣药”之称的药物是(D)
A. 柴胡
B. 辛夷
C. 升麻
D. 生姜
E. 白芷