单项选择题

字符输入的函数是()

A、putchar()
B、getchar()
C、scanf()
D、get

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which one is wrong regarding the basic electric rhythm ...

单项选择题which one is wrong regarding the basic electric rhythm of smooth muscle in digestive tract?

A、the smooth muscle of alimentary tract depolarizes and repolarizes spontaneously and slowly in a cyclic fashion
B、is also called slow wave
C、It has a same frequency in diffferent locations of the GI tract
D、its amplitude is about 5-15 mV

阅读下面的程序 #include <stdio....

单项选择题阅读下面的程序 #include <stdio.h> int main() { char ch; scanf("%3c",&ch); printf("%c",ch); return 0; } 如果从键盘上输入 abc

A、a
B、b
C、c
D、abc

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