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【单选题】
液体流动规律总是( )A.
从高处流向低处
B.
从流速大处流向流速小处
C.
从压强大处流向压强小处
D.
从单位机械能大处流向单位机械能小处
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举一反三
【简答题】测量三相电路功率时,不论电路是否对称
【单选题】Look at the children. ______ they are laughing! [ ]
A.
How happy
B.
How happily
C.
What happy
D.
What happily
【单选题】Passage 1There are robots all around us. Some do very complicated jobs like flying airplanes and driving subway trains. And some do one simple job. When an automatic washing machine is switched on, wa...
A.
It has a computer brain.
B.
It cannot move.
C.
It has an eye.
D.
It can feel shapes and temperature.
【单选题】Look at the _____ girl! How_____ she is dancing! [ ]
A.
happy, happy
B.
happily, happily
C.
happy, happily
D.
happily, happy
【简答题】翻译:How happily the dolphin is playing!
【单选题】_____ the students were hearing the exciting news! [ ]
A.
How happily
B.
What a fun
C.
What pleasure
D.
How pleased
【单选题】Passage 1There are robots all around us. Some do very complicated jobs like flying airplanes and driving subway trains. And some do one simple job. When an automatic washing machine is switched on, wa...
A.
A bus driver
B.
A machine with eyes and fingers
C.
A human engineer
D.
An automatic washing machine
【单选题】Passage 1There are robots all around us. Some do very complicated jobs like flying airplanes and driving subway trains. And some do one simple job. When an automatic washing machine is switched on, wa...
A.
Robots work because they like working.
B.
Robots work because they have feed back.
C.
Robots will get bored doing the same work over and over again.
D.
Robot’s electronic memory should not be wiped clean.
【单选题】_________ happily the children are flying kites! [ ]
A.
What
B.
What a
C.
How
D.
How a
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