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【单选题】
国际上称为RSC箱的是()A.
02类纸箱
B.
0201型纸箱
C.
0203型纸箱
D.
0202型纸箱
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举一反三
【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 ________ .
【简答题】已知复数z=（2m 2 +3m-2）+（m 2 +m-2）i，（m∈R）根据下列条件，求m值． （1）z是实数； （2）z是虚数； （3）z是纯虚数； （4）z=0．
【简答题】已知命题P：复数z 1 =3-3i，复数 z 2 = m 2 -4m-10 m+2 +( m 2 -2m-12)i，(m∈R) ，z 1 +z 2 是虚数；命题Q：关于x的方程2x 2 -4（m-1）x+m 2 +7=0的两根之差的绝对值小于2．若P∧Q为真命题，求实数m的取值范围．
【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
【简答题】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.自然,河流、山谷和边疆许久之前就已经___地图上了,今天我们说的___是指全球通讯网络中仅剩的几个_...
【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
【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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