患者女性,18岁,活动后气短3周,如诊断小细胞低色素性贫血MCV应为
A.<70fl
B.<80fl
C.80~100fl
D.70~100fl
E.>100fl
参考答案:B
对于8259A的中断请求寄存器IRR当某一个IRi端呈现______时,则表示该端有中断请求。
Jane is not good at sports,but when it to cooking,she’s excellent.
A.happens
B.comes
C.does
D.occurs