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【单选题】
与CT相比，下列关于SPECT的说法错误的是A.
成像技术为计算机断层
B.
射线源为放射性核素
C.
形态与功能相结合，重在代谢功能研究
D.
成像参数为衰减值
E.
射线入射方式为体内发射
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【判断题】儿童文学作为一个独立的文学门类的存在,是因为它有着自己特殊的服务对象和读者群体,这就是儿童。另一方面,从实际情形看,儿童文学不仅被儿童所接受,常常也被成人所接受。
A.
正确
B.
错误
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