CT机空间分辨率的测量,常用的方法是()
A.目测
B.仿真人体体模
C.分辨率体模
D.分辨率测试线对板
E.星模卡
参考答案:C
The little girl has two _________ now. [ ]
A. tooth
B. toothes
C. teeth
D. tooths
河北省发展农产品加工业有哪些规定?