电煤库存可用天数=()
A.当日库存煤量/最大日耗煤量
B.当日库存煤量/90%最大日耗煤量
C.当日库存煤量/85%最大日耗煤量
D.当日库存煤量/80%最大日耗煤量
参考答案:C
疟疾的传染源是___、___。
Why don’t you just ______ your own business and leave me alone?
A.make
B.open
C.consider
D.mind