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【单选题】
邮件到达率是分析我们发送的邮件究竟有多少真正到达了用户的信箱,计算方法是A.
邮件到达率 =( 总发送量 - 收到退件提示的邮件量 )/ 总发送量
B.
邮件到达率 =( 总发送量 - 已阅读的邮件量 )/ 总发送量
C.
邮件到达率 =( 总阅读量 - 收到退件提示的邮件量 )/ 总发送量
D.
邮件到达率 =( 总阅读量 - 已阅读的邮件量 )/ 总发送量
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【单选题】Once a landlord wanted to plant garlic in his fields. He found a group of boys and asked them to do the work for him. At lunch time he did not invite the boys to have lunch with his family. The boys h...
A.
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B.
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C.
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