<p>1. Unlike paper bank notes,which are worthless in themselves</p><p>为什么用IN ,不用ON 或 FOR?</p><p>2.world -wide financial problems____the Glod Standard to be dropped .</p><p>A convert </p><p>B resulted </p><p>C made</p><p>D caused</p><p>选哪个,为什么?请高手指点</p><p>钱不多,希望不要嫌少<br/></p>