【判断题】As a speaker, if you don’t know the answer to a particular question, just ignore the question and move on to the next one.
【单选题】If you don’t like the talk going on, you may say:_______.
C.
“Well, it’s going late. I think we can continue the discussion next time”
【简答题】设A是n阶实对称正定矩阵,则由格式(2.21)得到的向量序列{r (k) }和{z (k) }满足 [r (k) ,z (k-1) ]=0,[r (k) ,r (l) ]=0,[z (k) ,Az (l) ]=0(k≠l).(2.22)
【单选题】If you don’t put the milk in the refrigerator,it may__________ . A.go byB.go off#
A.
If you don’t put the milk in the refrigerator,it may__________ . A.go by
【判断题】As a speaker, if you don’t know the answer to a particular question, just ignore the question and move on to the next one.
【单选题】传热系数K与传热阻R0关系是()。(d:厚度 △t表面温差)
【单选题】They will cut ______ the gas if you don’t pay the bill.
【判断题】因为斯特劳哈数为0.21,只要测得漩涡的脱落频率,便可根据斯特劳哈数公式求得管内流体的流速,进而确定管内流体的流量。()