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【单选题】
CT 图像的放射状伪影通常产生于A.
病人的自主或不自主运动
B.
X 射线剂量不足
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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皮皮学刷刷变学霸
举一反三
【单选题】Elephants like eating ____, but lions like eating ____. [ ]
A.
grasses; meats
B.
grasses; meat
C.
grass; meats
D.
grass; meat
【单选题】______ of the land in Jia Xing No. 1 Middle School _______ covered with trees and grass.
A.
Two third, are
B.
Two thirds, are
C.
Two third, is
D.
Two thirds, is
【单选题】(2013·重庆部分学校高三联考)At the edge of the grass，there's a sign saying“________ the grass”．
A.
Keep up
B.
Keep away
C.
Keep off
D.
Keep back
【简答题】读读，写出颜色。 1. The grass (小草) is ______________. 2. The flower (花) is ______________. 3. The banana (香蕉) is ______________. 4. The sky (天空) is ______________. 5. The g (葡萄) is ______________.
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