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【单选题】
( )是物流企业对有关物流营销市场可能发生的变化和发展趋势作出估计,并作为制定营销策略的重要依据。A.
市场因素预测
B.
市场因素调查
C.
市场因素评价
D.
市场因素分析
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【简答题】如图，AB ∥ A′B′，BC ∥ B′C′，BC交A′B′于点D，∠B与∠B′有什么关系？为什么？
【单选题】According to the interview, Professor Smith indicates that
A.
people are reluctant to talk about privacy publicly in the 1920s.
B.
American women were given more rights and choices in the 1920s.
C.
many women were forced to join the army during the 1920s.
D.
the number of students attending high school decreased in the 1920s.
【多选题】设a，b为不共线的非零向量， AB =2a+3b ， BC =-8a-2b ， CD =-6a-4b ，那么（ ）
A.
AD 与 BC 同向，且 | AD ＞| BC |
B.
AD 与 BC 同向，且 | AD |＜| BC |
C.
AD 与 BC 反向，且 | AD |＞| BC |
D.
AD 与 BC 反向，且 | AD |＜| BC |
【简答题】如图，∠BAC=100°，点M在边BC上，△A′BC和△ABC对称于BC，△A′B′C和△A′BC对称于A′C，△A′B′C′和△A′B′C对称于A′B′，这时点M陆续变成M′和M″，那么∠MA′M″=______．
【单选题】Most surveys find that people are reluctant to place themselves at either the top or the bottom of the social ladder.
A.
uncommon
B.
uncertain
C.
unwilling
D.
voluntary
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