In order to send her child to a key school, she has to make more money ____ by teaching children piano in her spare time.A. on the spotB. on the wholeC. on the sideD. on a diet
A. on the spot
B. on the whole
C. on the side
D. on a diet
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The old man ____ through his thick eyeglasses and studies me, which made me very embarrassing.
A. peered
B. peeped
C. stared
D. glared
In Africa, children are ______ to work from an early age to support their families.
A. completed
B. rebelled
C. repelled
D. compelled
The leaders haven’t decided on the new ____ for the factory.
A. cite
B. colony
C. site
D. settlement
三角形联接的对称三相电源，线电压为相电压的根号（）倍
A. １
B. ２
C. ３
D. 0
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