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【单选题】
长鞭效应的消除方法不包括( )。A.
提高预测的精确度
B.
增加库存
C.
实现信息共享
D.
缩短提前期
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反馈参考答案：
举一反三
【单选题】I'm sure he hasn't sent the letter. If he ______ it, I ______ .
A.
sent, got
B.
sent, have got
C.
sent, would go
D.
had sent, would have got
【单选题】Wre sent a telegram yesterday as we______any letter from him for a long time.
A.
haven't received
B.
didn't receive
C.
hadn't received
D.
would not receive
【单选题】What did Goodyear do as the first step to fight against absenteeism?
A.
They sent a letter to each employee's home through the post office.
B.
They sent letters to employees' homes in person.
C.
They gave away prizes first.
D.
They punished its employees severely.
【简答题】He sent me _____ letter, but _____ letter didn't arrive.
【单选题】I' m sure the letter won' t arrive in time ______ it is sent by air.
A.
if
B.
until
C.
because
D.
unless
【简答题】在上一次实验的基础上,修改代码,给3个按钮添加事件。 单击“登录”按钮时,弹出登录窗口; 单击“注册”按钮时,弹出注册窗口; 单击“取消”按钮时,关闭窗口,结束程序。
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