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【判断题】
蒸发器时,膨胀阀和感要敷好保温材料,蒸发器内要加注一定量的冷冻机油。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】关于显示卡的性能指标，如下说法错误的是（）
A.
当显示器大小不变时，显卡分辩率越低，显示的字符和图像就会越大。
B.
显示器屏幕闪烁，是因为刷新频率太低。
C.
颜色数越多，显卡需要处理的数据量就越大。
D.
颜色深度就是色彩的数目
【单选题】-- He didn't go to the concert yesterday, did he? -- .He was busy studying for the tests all day.
A.
[A] No, he didn't
B.
[B] Yes, he did
C.
[C] No, he did
【单选题】— He went to see the man who was in hospital yesterday. — _____. [ ]
A.
So did we
B.
So we did
C.
We did so
D.
Did so we
【单选题】---He went to see the man who was in hospital yesterday.--- ______.
A.
So we did
B.
So did we
C.
We did so
D.
Did so we
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