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【单选题】
He was walking along the river __________ he saw a little boy lying under a tree. [ ]A.
while
B.
when
C.
as
D.
which
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【单选题】弱酸的电离常数Ka Θ ,弱碱的电离常数Kb Θ ,水的离子积常数Kw Θ ,它们都属于标准平衡常数,它们的共同特性是
A.
与温度无关
B.
受催化剂影响
C.
与浓度无关
D.
与溶剂种类无关
【简答题】According to Terry Grief， the number of school staffs has decreased because of lackingmoney in his district. 查看材料
【简答题】战略成本控制常常决定企业()。 A:各项固定成本水平的高低 B:各项变动成本水平的高低 C:共同变动成本水平的高低 D:共同固定成本水平的高低
【简答题】Staffs of the _________ (marketable) Department would have to do much survey to keep track of the market needs.
【判断题】The owner of the famous Ford cars thought open-plan offices would make office staffs work efficiently.
A.
正确
B.
错误
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