— Can you get me some juice to drink? I'm thirsty.
— Sorry, there is ________. Please ask Sally, instead.
A:too much
B:too many
C:too little
D:too few
如图所示,一直杆可绕O点转动,杆下挂一重物,为了提高重物,用一个始终跟直杆垂直且作用于OB中点的力F,使直杆由竖直位置慢慢转到水平位置,在这个过程中这个直杆( )
如图中A代表某城市中的一片森林,B为该树林附近的道路,请回答: