【简答题】证明,若函数f(x)与g(x)连续,则函数 φ(x)=min(f(x),g(x))与ψ(x)=max(f(x),g(x))也连续
【简答题】w____ ready to do sth
【判断题】如果某公司存在债务融资,则其财务成本比率等于1。( )
【单选题】对表面活性剂的临界胶束浓度叙述正确的是
A.
临界胶束浓度是开始形成胶束时表面活性剂的最低浓度
B.
临界胶束浓度的数值只受温度、分子缔合程度的影响
D.
临界胶束浓度的数值不受 pH 及电解质的影响
【简答题】1W: What would you like, Pepsi-Cola or Coca-Cola? M: Pepsi-Cola, please. Q: Where are they talking? 2M: So, do you enjoy Chinese food? W: Why not? Q: What does the woman mean? 3W: You seem to...
【简答题】若f(x)为连续函数而f(x)↓0,(x→∞).求证
【单选题】听力原文:W: I've finally finished typing my homework paper. M: Tell me when it's ready. I want to see it. Q: What docs the man want to do? (3)
A.
Read the woman's paper.
B.
Borrow the typewriter.