某单片太阳电池测得其填充因子为77.3%，其开路电压为0.62V，短路_爱下问搜题

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问题单项选择题

某单片太阳电池测得其填充因子为77.3%，其开路电压为0.62V，短路电流为5.24A，其测试输入功率为15.625W，则此太阳电池的光电转换效率约为（）。

A.0.1607

B.0.1531

C.0.1692

D.0.1483

答案

参考答案：A

填空题

阅读下面短文，从所给的12个词或词组中选出10个词或词组，并用其适当形式填空，请将答案写在答题卡的相应位置上。

mean, take, wash, look at, on, slow, clean, while, when, you, boy, child

Bob lived in a small town.Later, he got a jobin a big city so he had to move there with hiswife and two _小题1:_.
_小题2:__ the first Saturday in their new home. Bob __小题3: his new red car out of the garage(车库). He 小题4: it when a neighbor came by. 小题5: he saw Bob’s car, the neighbor stopped and __小题6:_it for a minute. Then Bob turned and saw him.
The neighbor said, “That's a nice car. Is it__小题7: ?”
"Sometimes" Bob answered.
The neighbor was puzzled. "Sometimes?" he said, "What doyou __小题8:_?”
Bob answered _小题9: ,"Well, when there's a partyin town, it belongs to my daughter. When there's a football game somewhere, it belongs to my son. When I've washed it, and it looks really nice and _小题10: , it belongs to my wife. And when it isdirty, it's mine."

问答题论述题

形成冷水面团、温水面团、热水面团性质的基理是什么？