We can get the ads most probably from______
A：a book
B：a newspaper
C：a novel
D：a documentary
在△ABC中，已知b=2，B=45°，如果用正弦定理解三角形有两解，则边长a的取值范围是（ ）
—Betty, please put these books in the box.
—But it is ______ now.We have to find another box.
The Mulan River ______ runs through the city is our mother river.
