CT定位扫描具有较高的（）分辨率。
A.空间
B.密度
C.体积
D.对比
E.像素
参考答案：B
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You said that the current shortage of water in some provinces would end soon, ______?
A. would it B. wouldn’t it D. did you D. didn’t you
苹果炭疽病主要危害苹果什么部位？症状有何特点？
