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【单选题】
下列时间数列中,各期指标值可直接相加的是( )。A.
时点数列
B.
时期数列
C.
相对数数列
D.
平均数数列
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【简答题】There are three kinds of goals: short-term, medium-range and long-term goals. Short-range goals are those that usually deal with current activities, which we can apply on a daily basis. Such goals can...
【单选题】Text C How we look and how we appear to others probably worries us more when we are in our teens or early twenties than at any other time in our life. Few of us are content to accept our- selves as we...
A.
satisfied with their appearance.
B.
concerned about appearance in old age.
C.
far from neglecting what is in fashion.
D.
reluctant to follow the trends in fashion.
【简答题】常见的教师自编测验的类型主要有___________和主观题。
【单选题】We managed to deal with the situation before it__________ ．
A.
tightened up
B.
got out of control
C.
lit up
D.
caught on
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