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【单选题】
CT图像的放射状伪影通常产生于A.
患者的自主或不自主运动
B.
X线剂量不足
C.
计算机处理故障
D.
电路不稳定
E.
被检者身体上的高密度结构或异物
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A.
that
B.
whose
C.
which
D.
its
【单选题】Not far from the school there was a garden, owner seated in it playing chess with his little grandson every afternoon.
A.
its
B.
whose
C.
which
D.
that
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A.
a,/
B.
an,/
C.
a, the
D.
an, the
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【简答题】Edius中播放的快捷键是 。
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