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【简答题】
化简 = _________ ．（其中a≥0）
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举一反三
【单选题】The expected return on an investment in stock is ( ).
A.
the expected dividend payments
B.
the anticipated capital gains
C.
the sum of expected dividends and capital gains
D.
less than the realized return
【简答题】__________ might be expected, the response to the question was very mixed. A) As B) That C) It D) What
【单选题】Why is the automobile industry considered to be the biggest manufacturing industry?
A.
Because there are 500 million cars on earth.
B.
Because there are one car for every ten people.
C.
Because sales of the automobile industry have reached about a trillion.
D.
Because it has been greatly changed with the computer revolution.
【简答题】__________ might be expected, the response to the question was very mixed. A) As B) That C) It D) What
【多选题】关于顾客和公众的说法正确的是
A.
顾客包括为直接使用而购买产品或服务的最终消费者，也包括以再加工或转卖为目的而购买的组织或个人
B.
顾客实际就是创业企业服务的对象，也是企业营销活动的核心
C.
用于转售、出租并获取利润的中间商也是顾客
D.
顾客就是消费者，就是购买企业产品与服务的人
E.
社会公众中很多可以看成是潜在的顾客
F.
公众是企业营销目标实现的重要影响者，并且当条件发生变化时，公众的角色也会随之改变
【单选题】下列化合物在水溶液中的酸性，按酸性由大到小顺序排列，哪一种是正确的
A.
乙酸＞乙二酸＞丙二酸＞丁二酸
B.
乙二酸＞丙二酸＞丁二酸＞乙酸
C.
丁二酸＞丙二酸＞乙二酸＞乙酸
D.
丙二酸＞乙二酸＞乙酸＞丁二酸
E.
乙二酸＞乙酸＞丁二酸＞丙二酸
【简答题】简述变频器的基本频率和最高频率。
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