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?