【判断题】纯金属和接近共晶成分的合金容易形成集中缩孔
【简答题】当血清中cHCO3-<22mmol/L,一般判断应考虑
【单选题】The reservation I _________last week is two single rooms.
【单选题】A: I made the reservation yesterday. B: What did he say? C: He said that _____.
A.
I had made the reservation yesterday
B.
he had made the reservation the day before
C.
he made the reservation yesterday
D.
he made the reservation the day ago
【单选题】The reservation I _________last week is two single rooms.
【单选题】习近平总书记指出:“中国梦的本质是 、人民幸福。”
【单选题】当血清中cHCO3-<22mmol/L,一般判断应考虑
【简答题】已知R=30Ω,L=120mH,C=12.5μF,串联后接到电压 的电源上。求电路的电流、电阻电压、电感电压和电容电压的相量及电路的有功功率、无功功率和视在功率,画出相量图。