【单选题】【2020数一】设A,B,C为三个随机事件,且P(A)=P(B)=P(C)=1/4,P(AB)=0,P(AC)=P(BC)=1/12,则A,B,C恰有一个发生的概率为
【判断题】The sentence “how is it that my husband and I learned so little” in Para.1 means “Why did my husband and I learn so little about DIY”.
【简答题】配送中心在选址之前,我们首先需要明确哪几个方面的问题?
【单选题】My husband bought the same mobile phone ________ I did yesterday.
【单选题】(2020考研数学一) 求函数 的极值。
【单选题】对角研,只适合刮削 ( ) 的原始平扳。