—When will your new book ________ ?
—Probably in December.
A:find out
B:come out
C:look up
D:set up
菠菜浸泡在清水中,清水不变色;用开水浸泡菠菜后,水会变成绿色。这是因为菠菜细胞的什么结构被破坏()
单词拼写