【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’。
【判断题】采集插穗应在阴天无风或者清晨有露水、下午 16:30 以后光照不是很强烈是进行 ( )
【多选题】(多选题)我国目前的死刑执行方式包括( )
【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( )。
【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
【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