诗《回答》相当鲜明地凸显了诗人纪念碑一般的（）形象。
参考答案：自我
某电阻两端加5V电压时，流过电阻的电流是1A，此电阻的大小为 Ω；若电压增加10V，其电阻的阻值为 Ω，电流为 A。
If a seller finds any discrepancies in the letter of credit against the sales contract, whom should he write to asking for an amendment（）
A．the issuing bank
B．the advising bank
C．the applicant
D．the negotiating bank
