轨检车检测中出现轨距不良，则至少存在一股轨向不良。
参考答案：对
Since the shipment consists of seasonable goods, it is important that it is ______ as soon as possible.
A．deleted
B．demanded
C．delivered
D．detached
交叉配血试验时，主侧与供血者红细胞配合的是受血者的（）
A、红细胞
B、血清
C、白细胞
D、全血
E、血小板
