3._________orange is_________ orange.A.A ;theB.An ;anC.An;/D./;an
3._________orange is_________ orange.
A.A ;the
B.An ;an
C.An;/
D./;an
相关考题:
Some people fear that ________ air pollution may bring about changes in _______ weather around the world.A. /; theB. the; /C. an; theD. the; a
His father is ___ old doctor.He often tells him not to smoke in ___ public. A.a, /B.an, /C.an, theD./, the
Some people fear that ___________ air pollution may bring about changes in ___________ weather around the world.A. /; theB.the; /C.an; theD.the; a
以下说法正确的是:A.周期信号的频谱是离散的。B.有限项谐波的叠加一定存在吉伯斯现象C.An是关于n的奇函数。D.非周期信号的频谱是离散的。