中国大学MOOC: $string=A;$string=$string x 4;$string.=B;$string.=A;$find_B=index($string,B);执行以上语句后，$find_B=？

$string="A";$string=$string x 4;$string.="B";$string.="A";$find_B=index($string,"B");执行以上语句后，$find_B=？ A: 4 B: 3 C: 2 D: 1

Please ______ when his plane will arrive. A: find B: find up C: find out D: find at

Could you（）the times of flights to Atlanta and reserve me a seat? A:  find through B:  find C:  find over D:  find out

Very seldom that two clocks or watches exactly agree. A: you find B: find you C: you will find D: do you find

Nowhere else in the world ______ a place that beautiful. A: do you find B: you can find C: can you find D: you will find

A．FOUND（)B．! FOUND（)C．FIND（)D．! FIND（) A: FOUND() B: ! FOUND() C: FIND() D: ! FIND()

Nowhere else in the world ______ a place so beautiful. A: you can find B: find you C: can you find D: do you find

I think it is high time we ______ a solution to the pollution. A: found B: will find C: find D: have find

查找指定inode的文件或目录,以下命令正确的是()。 A: find/-inode141418 B: find/-inum141418 C: find/-type141418 D: find/-iname141418