上行功控的目的是()
A.补偿路损,
B.补偿阴影余量,
C.抑制小区干扰,
D.降低手机发射功率
参考答案:A, B, C
That box is ____ than this one. [ ]
A. many heavier
B. more heavier
C. much heavier
下列相变不属于二级相变()
A.超导相变
B.磁性相变
C.玻璃态相变
D.铁电相变