C++ open 后一定要 close吗?如果不close会怎样?

C++ open 后一定要 close吗?如果不close会怎样? open后怎么close Don't go and ___the doors and windows.They are___.A.close;open B.open;open C.open;close D.close;close The door is_____,it's not______.A.closed open B.opened close C.open close D.close open如何选择?open和close可以用于被动语态? The door is ____,but the windows are___.A open open B close close C open closed D open close为什么选C? ---Is the ship_____now?---No,it's_____.( )A.open,close B.open,closed C.opened,closed D.opened,close opened,open,close, open close my flower Let's ( ) the fridge.A open B close C turn off 各位有知道怎么选的吗? 谁知道open opened close closed的区别吗 open的反义词是close closed/open/close的用法 the door is open,but the windows are ...后填close还是closed?请说下依据, What time ( ) the shop ( ) on Sunday? A.do;open ,B.does; open C, is;close D,is;opened Why not keep your mouth___and your eyes___?A.closing;opening B.close;open C.closed;opening D.closed;open The door was（ ） but the windows were （）A.close; open B.closed; open C.closed; opened —Is the library ________ now?--No,it’s ________.A open;close B opening;closing C open;closed D Usually the shop is （） on Sunday ,but it's（ ) today.A,open,close B,open,closed C,opened,close D,opened,closed