CMPT板上的RUN指示灯以0.5Hz频率慢闪，表明单板处于（）状态A.加_爱下问搜题

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问题单项选择题

CMPT板上的RUN指示灯以0.5Hz频率慢闪，表明单板处于（）状态

A.加载

B.工作正常

C.测试

D.故障

答案

参考答案：B

选择题

________ he had won the first prize, he felt very happy.

A．Know

B．Known

C．Knowing

D．Being known

判断题

园艺产品的特点是种类品种繁多、产量受产地因素影响不大。