【简答题】What does the speaker mainly talk about? ______ in the U. S.
【简答题】仔细阅读2:'There's an old saying in the space world: s talk about technology, professionals talk about insurance.'"There's an old saying in the space world: s talk about technology, professi...
【单选题】— What’s the main purpose of tonight’s meeting? — We are going to talk about the problem _______ at the last meeting.
【单选题】$a="happy"; $b=10; echo --$b; echo ""; echo $b; echo ""; echo "gaga".$a;