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【单选题】
设随机事件A,B满足P(AB)=0,则下列各选项中一定正确的是( )
A.
A,B为相等事件
B.
A,B为包含关系
C.
P(A)=0或P(B)=0
D.
P(A−B)=P(A)
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参考答案：
举一反三
【多选题】SubString(&Sub,S,pos,len)的初始条件是:
A.
串S存在，1≤pos≤StrLength(s)
B.
0≤len≤StrLength(s)-pos+1
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【判断题】若串S=‘GUSEKOLWJFI’,则SubString(&Sub,S,5,3)的结果是Sub =‘KOL’。
A.
正确
B.
错误
查看完整题目与答案
【单选题】I’m going to have to take these clothes off, for I ’m _____ to the skin!
A.
dipped
B.
soaked
C.
immersed
D.
submerged
查看完整题目与答案
【单选题】听力原文： Human population near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the a...
A.
The adaptations of the African grass mouse to its environment
B.
The sleeping habits of the African grass mouse
C.
The effect of intense sunlight on the diet of the African grass mouse
D.
The habitat of the African grass mouse
查看完整题目与答案
【单选题】若SubString(Sub,S,pos,len)表示用Sub返回串S的第pos个字符起长度为len的子串的操作,则对于S=“Data Structure”,SubString(Sub,S,6,3)的结果为( )。
A.
“ta Str”
B.
“Str”
C.
“tru”
D.
以上均不正确
查看完整题目与答案
【单选题】函数SubString(sub,‘DATASTRUCTURE’,1,4),则sub的值为( )。
A.
‘STRUCTURE’
B.
‘DATA’
C.
‘ASTRUCTUR’
D.
‘DATASTRUCTURE’
查看完整题目与答案
【判断题】果树进行设施栽培时设施内温度中午最低、早、晚最高
A.
正确
B.
错误
查看完整题目与答案
【简答题】Consider the flow over a 22.2o half-angle wedge. If M 1 =2.5, p 1 =1atm, and T 1 =300K, calculate the wave angle and p 2 , T 2 and M 2 .
查看完整题目与答案
【多选题】我国目前的死刑执行方式包括( )
A.
绞刑
B.
注射死刑
C.
电椅
D.
枪决
查看完整题目与答案
【单选题】听力原文： Human population near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the a...
A.
It has a flattened shape
B.
It has an extra layer of pigmented tissue
C.
It has a furry covering
D.
It has a large cranial cavity
查看完整题目与答案
相关题目：
【多选题】SubString(&Sub,S,pos,len)的初始条件是:
A.
串S存在，1≤pos≤StrLength(s)
B.
0≤len≤StrLength(s)-pos+1
查看完整题目与答案
【判断题】若串S=‘GUSEKOLWJFI’,则SubString(&Sub,S,5,3)的结果是Sub =‘KOL’。
A.
正确
B.
错误
查看完整题目与答案
【单选题】I’m going to have to take these clothes off, for I ’m _____ to the skin!
A.
dipped
B.
soaked
C.
immersed
D.
submerged
查看完整题目与答案
【单选题】听力原文： Human population near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the a...
A.
The adaptations of the African grass mouse to its environment
B.
The sleeping habits of the African grass mouse
C.
The effect of intense sunlight on the diet of the African grass mouse
D.
The habitat of the African grass mouse
查看完整题目与答案
【单选题】若SubString(Sub,S,pos,len)表示用Sub返回串S的第pos个字符起长度为len的子串的操作,则对于S=“Data Structure”,SubString(Sub,S,6,3)的结果为( )。
A.
“ta Str”
B.
“Str”
C.
“tru”
D.
以上均不正确
查看完整题目与答案
【单选题】函数SubString(sub,‘DATASTRUCTURE’,1,4),则sub的值为( )。
A.
‘STRUCTURE’
B.
‘DATA’
C.
‘ASTRUCTUR’
D.
‘DATASTRUCTURE’
查看完整题目与答案
【判断题】果树进行设施栽培时设施内温度中午最低、早、晚最高
A.
正确
B.
错误
查看完整题目与答案
【简答题】Consider the flow over a 22.2o half-angle wedge. If M 1 =2.5, p 1 =1atm, and T 1 =300K, calculate the wave angle and p 2 , T 2 and M 2 .
查看完整题目与答案
【多选题】我国目前的死刑执行方式包括( )
A.
绞刑
B.
注射死刑
C.
电椅
D.
枪决
查看完整题目与答案
【单选题】听力原文： Human population near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the a...
A.
It has a flattened shape
B.
It has an extra layer of pigmented tissue
C.
It has a furry covering
D.
It has a large cranial cavity
查看完整题目与答案
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