多项选择题 下列经济业务中，不影响资产总额的有（    ）。 A、向已预付货款的购货单位发出商品  B、预付购买材料款 C、公积金转增资本 D、向供货方赊购材料

单项选择题 全应力在截面法线上的投影称为（ ）. A、应力 B、正应力 C、切应力 D、轴力

单项选择题 惟有相互了解，国与国才能增进信任，加强合作。______    A．Without mutual understanding, it is impossible for countries to build trust and promote cooperation with one another.    B．It is mutual understanding which makes it possible for countries to build trust and promote cooperation with one another.    C．Only mutual understanding can be one way for countries to build trust and promote cooperation with one another.    D．Mutual understanding is one way only for countries to build trust and promote cooperation with one another.