皮皮学，免费搜题
登录
搜题
【单选题】
设A、B为两随机事件，且 ，则下列式子正确的是( )。A.
P(A+B)=P(A)
B.
P(AB)=P(A)
C.
P(B|A)=P(A)
D.
P(B-A)=P(B)-P(A)
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】2-1-15 按照价层电子对互斥理论,在计算配位原子提供的价电子数时, H 与卤素原子可看作提供 个电子, O 或 S 原子则可认为提供 个电子。
【单选题】《庄辛说楚襄王》中，顷襄王“左州侯，右夏侯，辇从鄢陵君与寿陵君，饭封禄之粟，而载方府之金，与之驰骋乎()之中，而不以天下国家为事”。
A.
居延
B.
洪泽
C.
玄武
D.
云梦
【简答题】Easy Ways to Keep Your Brain Sharp Everyone is forgetful, but as we age, we start to feel like ou r brains are slowing down a bit and that can be a very annoying thing. 1 Read on for some techniques w...
【单选题】Our physical and (1) well-being are closely linked. A number of minor (2), such as loss of sleep, may be (3) related to stress. These problems can become serious if people do not admit their importanc...
A.
career
B.
disorder
C.
glorious
D.
killer
E.
psychological
F.
realistic
G.
recovery
H.
reluctance
【简答题】按照价层电子对互斥理论,在计算配位原子提供的价电子数时, H 与卤素原子可看作提供 ________ 个电子, O 或 S 原子则可认为提供 ________ 个电子。(填阿拉伯数字)
【单选题】Our physical and (1) well-being are closely linked. A number of minor (2), such as loss of sleep, may be (3) related to stress. These problems can become serious if people do not admit their importanc...
A.
career
B.
disorder
C.
glorious
D.
killer
E.
psychological
F.
realistic
G.
recovery
H.
reluctance
相关题目：