在A车的气路图中，两个空气弹簧中间还设置有一个L9（）
A、称重阀
B、模拟转换阀
C、均压阀
D、紧急电磁阀
参考答案：C
She told us what she bought yesterday ________ a few apples and some clothing.
A．is
B．are
C．was
D．were
一般列车广播录音机电源熔丝（）A。
A.0.5
B.0.75
C.1.0
D.2.0
