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【单选题】
library(datasets) 的功能是( )A.
显示datasets包的内容
B.
下载datasets包
C.
安装datasets包
D.
加载datasets包，即将datasets包载入当前工作空间
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反馈参考答案：
举一反三
【单选题】A currency depreciation on the foreign exchange market will______.
A.
encourage imports to the country whose currency has depreciated
B.
discourage imports to the country whose currency has depreciated
C.
discourage exports to the country whose currency has depreciated
D.
encourage foreign travel by the citizens of the country whose currency has depreciated
【单选题】To encourage the minorities to enter the teaching profession, states must ______ .
A.
give them financial support
B.
improve the method of testing minority candidates
C.
set up teachers training department
D.
simplify the criteria for assessing minority teachers
【单选题】Don't pour_____water on his planWe should encourage him.
A.
hot
B.
cool
C.
warm
D.
cold
【简答题】While the wife is on a business trip, what should she encourage her husband and children to do?
【单选题】You should ______ your students ______ again. Don't criticize(批评) them often. [ ]
A.
encourage, try
B.
encourage, trying
C.
encourage, to try
D.
encourage, tried
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