答案:A
He told me that she had met one of my old friends in the street ________.
A.the next day
B.the following day
C.the day before
D.yesterday
如图为三种形式的吊车的示意图,OA为可绕O点转动的杆, AB为栓接在A点的缆绳,杆与缆绳的重量均不计,当它们吊起相同重物时,杆OA在三图中受力分别为Fa、Fb、Fc的关系是( )
A.Fa>Fc= Fb
B.Fa= Fb >Fc
C.Fa> Fb >Fc
D.Fa= Fb =Fc