The passage implies that buffalo chips were needed _______.
A. in greater amounts in summer
B. in greater amounts in winter
C. only in summer
D. only in winter
查看答案
下列人类活动违反水循环和水平衡规律的是（）
A. 跨流域调水
B. 引水灌溉
C. 大面积地排干湖泊和沼泽
D. 修建水库
关于美国重要工业中心休斯敦的正确叙述是（）
A. 位于美国资本主义发展最早的北部地区
B. 是美国大西洋沿岸的著名海港
C. 气候属温带大陆性气候
D. 是美国重要的石油、宇航工业中心
Which of the following does the author not express surprise at？
A. The children needed competitions to them.
B. The buffalo chips gave off no smell.
C. Buffalo chips were the answer to the settlers fuel problem.
D. Young men took bags of buffalo chips to their girl friends.
功能制护理的优点不包括
A. 护理工作的整体性强
B. 节省护士人力
C. 节约护理经费
D. 节约护士时间
E. 护士的工作效率高
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