在小儿肾脏疾病中下列哪一种最为多见（）
A.单纯性肾病综合征
B.急性肾小球肾炎
C.IgA肾病
D.急、慢性肾衰竭
E.慢性肾炎
参考答案：B
What does the speaker think about age and work a. Generally speaking, work gets much easier after 40. b. Generally speaking, work gets much harder after 40. c. Age and work are not correlated. d. He is undecided.
程序段如下： SET TALK OFF A=1 B="ABCDEFG" C=SUBSTR(B,A,LEN(B)/2) C 程序执行后输出的结果是______。
A．ABC
B．ABCD
C．DEFG
D．EFG
