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Andriod手机如何安装在SD卡中的apk应用？

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以下不属于电子商务环境中物流信息系统特征的是（）

A. 集成性
B. 安全性
C. 不可重构性
D. 人性化与智能化

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以下表示铅酸电瓶完成充电的特征是：（）.

A. 液面上升到规定值
B. 电解液密度保持不变
C. 温度达到电解液沸腾
D. 充电电流、电压变为零

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如早餐券销售形式为挂账，则应通过（）方式来退回。

A. 平账
B. 冲账
C. 报表修正

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In your Automatic Storage Management （ASM） instance， one of the nonempty disk groups，DGROUP1， is no longer required and you want this disk group to be removed. You execute the following command to achieve this objective： DROP DISKGROUP dgroup1 EXCLUDING CONTENTS； What would be the result of this command？（）

A. This command would result in an error because the disk group is not empty.
B. The command would drop the disk group， ignoring the EXCLUDING CONTENTS option.
C. The command would result in the disk group being marked as INVALID because it cannot be dropped.
D. The command would result in the contents being moved to the parent disk group and dropping of the disk group.
E. The command would distribute the contents of the specified disk group among all other disk groups and then drop the specified disk group.

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