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【单选题】
Oh, it's you! I didn’t know you ___ here!A.
am
B.
were
C.
have been
D.
will be
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The May Fourth ______ against imperialism and feudalism began in Beijing in 1919.
A.
movement
B.
battle
C.
campaign
D.
action
【单选题】下列程序段中,有错误的是()
A.
int main() { float a=2.6,b; b=max(2.1,3.6)=a++; printf("%f",a+b); return 0； }
B.
int f2(int x) { return (x>1?puts("Y"):puts("N")); }
C.
int f() { int x; scanf("%d",&x); return x++,x+5; }
D.
void xchange(int x,int y) { int t; t=x;x=y;y=t; }
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