下列装置不属于CRH1A型动车组Mc1车B转向架的是()。
A.停放制动
B.接地电刷
C.速度传感器
D.自动过分相天线
参考答案:D
Linda used ______long hair. Now she has short hair.
A.having
B.to have
C. has
D.Had
离散型随机变量