重型轨道车大修理周期为()km。
参考答案:60000~80000
_____ the extremely hot weather, we continued having classes. [ ]
A. Thanks to
B. In addition to
C. In defence of
D. Regardless of
反映近期苯接触水平的指标,不包括()
A.呼气中苯的量
B.血中苯的量
C.尿中苯的量
D.尿中酚的量
E.血中酚的量