题干
My favorite star and his daughter ________ the show(节目） Where are we going, dad (《爸爸去哪儿》).
A：is in
B：are in
C：be at
D：am on
答案(点此获取答案解析）
B
g．则它运动到最低点时，绳对球的拉力大小为 ( )
确的是 （ ）