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【单选题】
A main idea of the article is that Bill Clayten helped a young boy and his family. Which key detail from the article supports this MAIN idea?A.
Bill Clayten received a text message from someone he did not know.
B.
He raised more than $1,500 from friends and companies in a few days.
C.
He started turning blue and wasn't breathing, his mom said. She quickly called 911.
D.
He is getting better, though he will have to stay in the hospital for now, she said.
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反馈参考答案：
举一反三
【单选题】关于肾小体的特征,哪项错误
A.
由血管球及肾小囊组成
B.
可分为血管级和尿极
C.
尿极与远端小管曲部相连
D.
血管极有入球和出球微动脉进出
E.
致密斑位于血管极两条微动脉之间
【单选题】设二维数组A[1... m,1... n](即m行n列)按行存储在数组B[1... m*n]中,则二维数组中元素A[i,j]在一维数组B中的下标为( )。
A.
（i-1）n+j
B.
（i-1）n+j-1
C.
i（j-1）
D.
jm+i-1
【单选题】设二维数组A[1..m,1..n]按行存储在数组B[1..m×n]中,则二维数组元素A[i,j]在一维数组B中的下标为( )。
A.
(i-l)×n+j
B.
(i-l)×n+j-l
C.
i×(j-l)
D.
j×m+i-l
【简答题】病虫害综合防治的前提是( )
【单选题】设二维数组A[1..m,1..n](即m行n列)按行存储在数组B[1..m*n]中,则二维数组元素A[i,j]在一维数组B中的下标为
A.
(i-1)*n+j
B.
(i-1)*n+j-1
C.
i*(j-1)
D.
j*m+i-1
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