等值梁法的关键在于()。
参考答案:确定反弯点位置
— Are these cars made in Japan?
— Yes. And they're much cheaper than in America. [ ]
A. that
B. those
C. it
D. ones
收银员检验银联卡时,若卡片有下列()情况,应拒绝受理。
A、签名有明显涂改痕迹
B、有银联标识
C、卡片签名条上有样卡字样
D、卡片有缺损