单项选择题 根据车船税法律制度的规定，下列车船中，应缴纳车船税的是______。 A．商用客车B．捕捞渔船C．警用车船D．养殖渔船
单项选择题 What best describes the normal blood flow to the lungs in a supine patient? （ ）A.largely uniformB.decreased flow to apices relative to basesC.increased flow to upper lobes
单项选择题 Inthe Western Countries,friendship is like... A、a cup B、a circle C、a flower D、a tree