设z=-1+3i2,则z2=( ) A.-1-3i2 B.-1+3i2 C.1+3i2

题型:选择题

问题:

z=
-1+
3
i
2
,则z2=(  )
A.
-1-
3
i
2
B.
-1+
3
i
2
C.
1+
3
i
2
D.
1-
3
i
2
考点:复数的四则运算
题型:选择题

根据下列各句句意和空白之后的汉语提示词,在答题卡指定区域的横线上写出对应单词的正确形式,每空只写一词。

小题1:I would be __________(感激) if you could give me some advice.

小题2:I can _________(辨认出) his voice on the phone.

小题3:The _________(坚定的)look on her face shows that she will never give up.

小题4:About 200 people are _________(围困)under the ruins.

小题5:The job and the pay from the government are my _________(回报).

小题6:All the ___________(艺术家)are coming from western countries.

小题7:Her being __________(录取) to the key school made her parents happy.

小题8:___________(就我个人而言), I think our team will win the match.

小题9:I’m ___________(保护) myself from mosquitoes.

小题10:Fans showed their _________(热爱) by waiting outside for hours.

题型:选择题

补充名句我能行。  

1.为______________崛起而____________。    

2.一言既出,________________。  

3._____________,行必果。  

4.生命在于____________。  

5.____________,坐如钟,_________________。

题型:选择题

小明骑自行车去书店,开始以2m/s的速度骑行 了400m,然后又以5m/s的速度骑行了500m,则他在整个过程中的平均速度为[ ]

A.2.5m/s

B.3m/s

C.3.5m/s

D.7m/s

题型:选择题

1971年11月1日,五星红旗第一次在联合国总部升起。这表明

①中国在联合国的合法席位得到恢复②中国在解决国际事务中所起的作用越来越大③中国与日本建立了外交关系④中国与美国建立了外交关系

A.①②

B.②③

C.①④

D.③④

题型:选择题

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