1kV及其以下电源中性点直接接地且保护线与受电设备外露可导电部_爱下问搜题

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问题判断题

1kV及其以下电源中性点直接接地且保护线与受电设备外露可导电部位连接接地时，三相回路中保护线与中性线合用同一导体时，应采用四芯电缆。()

答案

参考答案：对

单项选择题 A1/A2型题

输血反应不包括（）。

A.发热反应

B.过敏反应

C.血液中毒

D.溶血反应

E.细菌污染

完形填空

完形填空（共20小题；每小题2分，满分40分）
One day a few years ago we had a guest of the uninvited variety. In fact, it was a bird,   1 a sparrow.
“What’s that?” I asked when I first heard the gentle thumping(重击声). “It sounds like Joe is outside playing basketball,” my wife, Anita, said. She   2  and listened more devotedly. “It’s coming from the 3 .” she said. “Maybe it’s one of the little kids.”
We rushed out the door. Jonathan, our youngest, was 4 to make trouble. “If he’s making holes in the wall again…” I said as I searched there. No children       5  . But there was that 6  again, coming from right up there.
And that’s when I 7  the sparrow. It was flying 8 just inches below the ceiling. It was 9 trying to get out, but couldn’t see that the way out wasn’t up, but down 10  the open door. So the bird continued 11  its wings and hitting its head against the 12 .
“Poor thing,” Anita said. “It must be 13  .”
“Well, maybe it’s because of us,” I said as I moved toward it. I tried to show the bird how to glide（滑翔） down to get outside, but that only seemed to 14   it more. “Why don’t we just 15 for a few minutes?” Anita suggested. “I’m sure he’ll    16 eventually.” So we went back into the house, where we continued to hear the ongoing 17  .Then suddenly, it was silent. We looked into the garage, and our uninvited guest was gone.
“See?” Anita said. “I told you he’d succeed.”
“Yeah,” I said. “But how many knocks on the head did it 18  him?”
I’ve thought about that little sparrow through the years. Just like that sparrow, we often meet situations we don’t know how to 19 . Born to go upward, we don’t even consider the possibility that something good might happen if we stop flapping（拍打）around and just glide 20 a little bit.

A．for example

B．rather than

B．unwillingly

A．put it aside

B．leave it alone

D．figure it out

B．achievement