题干
The beef _______ too salty. I don't like it.
A：am
B：is
C：are
答案(点此获取答案解析）
B
The beef _______ too salty. I don't like it.
A：am
B：is
C：are
ABC中，角A，B所对的边长分别为a，b. 若2asinB=
b，则角A等于（ ）