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搜题
【单选题】
对稀疏矩阵进行压缩存储的目的是( )。A.
节省存储空间
B.
便于进行矩阵运算
C.
便于输入和输出
D.
降低运算的时间复杂度
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反馈参考答案：
举一反三
【简答题】请完成下列对话。 1. 가 : 집에서 학교까지 두 시간쯤 걸려요 . 나: 아니요 , 겠어요 .
【多选题】进出口货物收发货人注册登记需要提交的材料包括()
A.
报关单位情况登记表
B.
营业执照副本复印件
C.
对外贸易经营者备案登记表复印件或者外商投资企业批准证书复印件
D.
其他与注册登记有关的文件材料
【多选题】进出口货物收发货人申请办理注册登记，应当提交下列文件材料，另有规定的除外( )。
A.
《报关单位情况登记表》
B.
营业执照副本复印件以及组织机构代码证书副本复印件
C.
对外贸易经营者备案登记表复印件或者外商投资企业（台港澳侨投资企业）批准证书复印件
D.
其他与注册登记有关的文件材料
【单选题】We spend about an hour a day . [ ]
A.
do our homework
B.
doing our homework
C.
do our homeworks
D.
doing our homeworks
【单选题】There is not one of us wishes to help you . We are doing our best .
A.
who
B.
that
C.
as
D.
but
【单选题】It was not until one night_____we were doing our cleaning－upI got curious and wanted to see what
A.
33．It was not until one night_____we were doing our cleaning-up I got curious and wanted to see what was on the top floor． A．that；that
B.
when；so
C.
that；because
D.
when；that
【单选题】The company, we are doing our social practice, needs some more students.
A.
which
B.
that
C.
where
D.
who
相关题目：
【单选题】There is not one of us wishes to help you . We are doing our best .
A.
who
B.
that
C.
as
D.
but
参考解析：
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