RM80清筛车挖掘链驱动液压挖掘速度有四种,也就是挖掘链运转的线速度有四种,其线速度最小为()。
A、2.0m/s
B、2.6m/s
C、2.8m/s
D、3.6m/s
参考答案:A
As soon as the waiter came to the table, the foreigner _______next to me asked him_______to call that big dish in Chinese.
A.seating; what
B.seated; how
C.sitting; how
D.seated; what
以对症治疗为主的传染病是
A.细菌性痢疾
B.艾滋病
C.伤寒
D.病毒性肝炎
E.霍乱