the middle rate of rmb yuan against us dollar concluded at 6.20 yesterday.the middle rate of rmb yuan against us dollar was 6.20 yesterday.the yuan's middle rate concluded at 6.20 against us dollar yesterday.the yuan's middle rate was 6.20 against us dollar yesterday. 20210311
th** ** from china's exchange rate changes on the h**tory, present situation and future prospects, on the bas** of the theory of exchange rate changes, changes in the renminbi from the internal an...