颤震的病位主要在（）
A.心肝肾
B.肝脾肾
C.心脑肾
D.脑髓
E.肾心脑肝
参考答案：B, D
.Beginners of English can _________ quite well without learning any grammar rules.
A．get along
B．get to know
C．get over
D．get through
如何判断厚皮甜瓜的成熟度？
