A：2xy
B：﹣2xy
C：4xy
D：﹣4xy
—A movie called X Men 2 is on show these days. Would you like to see it with me?
—Sorry. I ______ it already. But it is really exciting.
Kate is very ________. She likes to stay at home and reads books.
2013年12月14日，我国“嫦娥三号”成功着陆在月球虹湾区，15日“嫦娥三号”着陆器与“玉兔号”月球车分离，月球车顺利驶抵月球表面，关于月球车的说法正确的是（ ）
口算．
