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【单选题】
接发球是排球比赛中的重要技术环节  接发球主要采用 ________ 的基本动作
A.
正面 双手传球
B.
体侧垫球
C.
正面双手垫球
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【单选题】平行板电容器接入电源保持其两板间的电势差不变,再使其内部充满相对电容率为r 的均匀电介质,则电容器各量的变化为()。
A.
电容增大
B.
电场强度增大
C.
极板上所带电量不变
D.
电容、电量及板间电场强度都减小
【简答题】根据下列句子及所给单词的首字母,写出各单词的完全形式(每空限填一词)。 小题1:I saw an alien get out of the UFO. Isn’t that a________. 小题2:The old men should be spoken to p________. 小题3:——Shall we meet on W_______ or Thursday?——Either day...
【简答题】2) The Mayans were excellent at architecture, for example, building stone cities and tall temples.
【单选题】Who has a more developed culture according to the speaker?
A.
Mayans.
B.
Arabians.
C.
North American Indians.
D.
British.
【简答题】With tools made of______, the Mayans were able to build high temples and made various works of art.
【单选题】Some of the keys have a special use. There are referred to as command keys. The 3 most common are the Control or(66), Alternate or(67)and the Shift keys though there can be more(the Windows key for ex...
A.
CON
B.
CTRL
C.
COTL
D.
CTR
【简答题】从方框中选择合适的单词,然后用其正确形式填空.。 pick    kid  shot   trouble   expect 1. I'm sorry to _____ you, but I wonder if we could have a word. 2. You're _____! I do n't want you to do that. 3. Our teacher _____ us to...
【单选题】以下哪条语句声明了一个过程级的整型变量?( )
A.
Dim x As Integer
B.
Set x As Integer
C.
Public x As Integer
D.
Private x As Integer
【单选题】平行板电容器接入电源保持其两板间的电势差不变,将两板间距拉大,则电容器各量的变化为( )
A.
电容增大
B.
电场强度增大
C.
极板上所带电量增大
D.
电容、电量及板间电场强度都减小
【简答题】选择恰当的词或短语完成句子。 visit,   turn left,   get to,   comes after,   sports meeting,   in front of,   catch,   looking for,   every,   because 1. I want to Nanjing one day. 2. Go along this street and then a...
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