Broders法鳞癌分级的根据是________和________。
参考答案：肿瘤细胞分化的不同比率、细胞非典型性的程度
-Maggie, I really love your handwriting. -_______.
A．I practice every day
B．Thank you very much
C．No, I don't think so
D．Well, it's not good enough
关于肾上腺素哪项不正确()
A．小剂量时呈β受体效应
B．大剂量时呈α受体效应
C．增强心脏自律性
D．使支气管平滑肌收缩
E．常引起反射性心动过缓
