黄铜矿
参考答案:
单个晶体很少见,集合体常为不规则的粒状或致密块状。深黄铜色,硬度3~4
甲、乙签订买卖合同后,甲向乙背书转让10万元的汇票作为价款。后乙又将该汇票背书转让给丙。如果在乙履行合同不符合规定后,经甲、乙协议,将该合同解除。甲的下列行为中,符合票据法律制度规定的是( )。
A.请求乙返还汇票
B.请求乙返还10万元价款
C.请求丙返还汇票
D.请求付款人停止支付汇票上的款项
You that late last night. It was harmful to your health. [ ]
A. mustn't have worked
B. shouldn't have worked
C. can't have worked
D. mightn't have worked