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【单选题】
You have a use case in your web application that adds several session-scoped attributes. At the end of theuse case， one of these objects， the manager attribute， is removed and then it needs to decide which of theother session-scoped attributes to remove. How can this goal be accomplished？（）A.
The object of the manager attribute should implement the HttpSessionBindingListener and it should call the removeAttribute method on the appropriate session attributes.
B.
The object of the manager attribute should implement the HttpSessionListener and it should call the removeAttribute method on the appropriate session attributes.
C.
The object of the manager attribute should implement the HttpSessionBindingListener and it should call the deleteAttribute method on the appropriate session attributes.
D.
The object of the manager attribute should implement the HttpSessionListener and it should call the deleteAttribute method on the appropriate session attributes.
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【单选题】病人,男性,48岁。肺癌晚期,目前神志模糊,肌张力消失,心音低顿,脉搏细弱,血压下降,间歇呼吸。该病人处于
A.
濒死期
B.
临床死亡期
C.
生物学死亡期
D.
临终状态
E.
躯体死亡期
【简答题】分解因式：8（x 2 -2y 2 ）-x（7x+y）+xy。
【单选题】某企业2012年3月发生了如下经济业务:(1)预付下季度房租20 000元;(2)收到3月份销售商品货款25 000元,款项已存入银行(3)购买1000元的办公用品;(4)预收购货方定金12 000元,货物尚未发送。以权责发生制为计算基础时,3月份的收支净额为( )元。
A.
24 000
B.
16 000
C.
4 000
D.
36 000
【简答题】分解因式：3x 2 -7x-6=______； 6x 2 -7x-5=______．
【单选题】Now, go upstairs and clean your room!
A.
at once
B.
in once
C.
once
D.
immediately at once
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