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【判断题】
Sean tried to hide himself when he saw his father in the restaurant because h e knew his father was going to embarrass him. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>A.
正确
B.
错误
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【简答题】说明需求量变动与需求变动的区别以及供给量变动与供给变动的区别。
【单选题】According to the passage, all of the following contributed to deforestation EXCEPT
A.
the expansion of agriculture
B.
an increase in forest fires
C.
the use of charcoal as a fuel
D.
steamboat transportation
【简答题】What causes the deforestation and threatens the existence of Amazon forest?
【简答题】试述 需 求 量变动与需求变动 的 区 别以 及 供 给量变动与 供给变动的区别, 并举 例说明 。
【单选题】It's decided that the present rate of deforestation(毁林) ______to continue.
A.
will not be allowed
B.
is not allowed
C.
would not be allowed
D.
should not be allowed
【简答题】设总体X 的密度函数为 其中 是未知参数 是从该总体中抽取的一个 简单随机 样本.
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