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【单选题】
The hotel's manager promises that they will provide an excellent _______.A.
experience
B.
service
C.
choice
D.
advice
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反馈参考答案：
举一反三
【简答题】已知m∈R，复数z= m(m+2) m-1 +( m 2 +2m-3)i ，当m为何值时， （1）z∈R； （2）z是虚数； （3）z是纯虚数； （4） . z = 1 2 +4i ．
【单选题】“Of course, the rivers and valleys and borders were long ago mapped; our blank spaces are the few remaining holes in the global communications network. ... But quite soon those gaps will be filled.” T...
A.
cheerful
B.
dishearted
C.
sympathetic
D.
optimistic
【简答题】已知 z 1 = m 2 - 3 m + m i , z 2 = 4 + (5 m + 4)i ,其中 m ∈ R , i 为虚数单位,若 z 1 = z 2 ,则 m 的值为 ________ .
【单选题】已知z 1 =m 2 -3m+m 2 i,z 2 =4+(5m+6)i,其中m为实数,若z 1 -z 2 =0,则m的值为( )
A.
4
B.
-1
C.
6
D.
0
【判断题】Our blank spaces are the few remaining holes in the global communications network. --- But quite soon those gaps will be filled.(Para. 5) The tone of these sentences are cheerful.
A.
正确
B.
错误
【单选题】已知 z 1 = m 2 －3 m + m 2 i, z 2 =4+(5 m +6)i,其中 m 为实数,i为虚数单位,若 z 1 － z 2 =0,则 m 的值为
A.
4
B.
－1
C.
6
D.
0
【单选题】从监理大纲、监理规划和监理实施细则内容的关联性来看，监理规划的作用是( )。
A.
指导项目监理机构全面开展监理工作
B.
指导监理企业全面开展监理工作
C.
作为业主确认监理单位履行合同的依据
D.
作为监理单位内部考核的依据
【简答题】已知m∈R，复数 z= m(m+2) m-1 +( m 2 +2m-3)i ，若 . z = 1 2 +4i ，则m=______．
【单选题】当船舶沉到水下工____处时,静水压力释放器被打开,EPIRB浮到水面并自动启动,发送
A.
信息。
B.
1 ~2 m
C.
2~4 m
D.
4~6 m
E.
1~5 m
【单选题】Of course, the rivers and valleys and borders were long ago mapped; our blank spaces are the few remaining holes in the global communications network. ... But quite soon those gaps will be filled. (Pa...
A.
cheerful
B.
sympathetic
C.
disheartened
D.
optimistic
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