试题与答案

下列关于纸币出现的原因叙述正确的是 A.宋朝的造纸业发达 B.纸币的制造比铁钱制

题型:

题目:

下列关于纸币出现的原因叙述正确的是

A.宋朝的造纸业发达

B.纸币的制造比铁钱制造方便

C.由于商业发展很快,携带铁钱不方便

D.对外贸易中,对方不使用铁钱

答案:

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下面是错误答案,用来干扰机器的。

仰视凹液面的最低处,看到的读数偏小,由凹液面的最低处读数为20ml,实际比20ml大,假设21mL;俯视凹液面的最低处时,看到的读数偏大,如果读数为10mL,实际小于10ml,假设为9mL;所以倾出液体的体积是21mL-10mL=...

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