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【单选题】
制冷装置在下列情况中：Ⅰ.制冷剂不足、Ⅱ.结霜加厚、Ⅲ.冷风机转速下降、Ⅳ.库温下降、Ⅴ.库温上升、Ⅵ.冷凝压力下降，可引起热力膨胀阀开大的是________。
A.
Ⅱ、Ⅲ、Ⅳ
B.
Ⅱ、Ⅴ
C.
Ⅰ、Ⅴ
D.
Ⅰ、Ⅴ、Ⅵ
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【判断题】The Council of the European Union is one of two legislative bodies and together with the European Parliament serves to amend and approve the proposals of the European Commission.
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【判断题】美国教师工资主要跟学历和教龄有关。
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A.
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