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【多选题】
气体绝缘变压器的结构特点包括( )。
A.
气体绝缘变压器的工作部分(和绕组)与油浸变压器基本相同
B.
一般气体绝缘变压器采用片式散热器进行自然风冷却
C.
气体绝缘变压器测量温度热电偶式测温装置,同时还需要装有密度继电器和真空压力表
D.
气体绝缘变压器的箱壳上还装有充放气阀门
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【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
【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
【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
【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
【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
【单选题】函数SubString(sub,‘DATASTRUCTURE’,1,4),则sub的值为( )。
A.
‘STRUCTURE’
B.
‘DATA’
C.
‘ASTRUCTUR’
D.
‘DATASTRUCTURE’
【单选题】SubString( sub, “commander“, 4, 3),sub的值为()
A.
der
B.
com
C.
man
D.
mman
【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
【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 .
【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
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