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【单选题】
一般来说,电话机应该摆放在办公桌的( )。A.
左上角
B.
左下角
C.
右上角
D.
右下角
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【单选题】She kept looking behind to see if she was being followed
A.
her
B.
herself
C.
her own
D.
she
【单选题】Having noticed that she was followed by someone, she stopped and looked at the shop window, _____ to be enjoying the beautiful clothes. [ ]
A.
preventing
B.
pretending
C.
permitting
D.
persuading
【简答题】A．She walked to a flying saucer. B．She followed the animal to a plane. C．She was carried to a spaceship. D．She left the car to go toward the spaceship.
【简答题】She kept looking behind to see if she was being followed A her B．herself C．her own D．she
【单选题】--- Where is your mother? --- She _______ to Sichuan on business. She has ______ there four times recently.
A.
has gone; gone
B.
has been; been
C.
has gone; been
D.
has been; gone
【简答题】无限长单位冲激响应( IIR )滤波器的基本结构有直接型,级联型和 ____________ 三种。
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