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【判断题】
R12对环境没有影响。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】以下哪种说法是错误的。
A.
垂直线可以看做是一种特殊的平行线
B.
平行于某一投影面的直线就叫做投影面的平行线
C.
垂直于投影面的直线叫做垂直线
D.
与三个投影面都倾斜的直线叫做一般位置直线
【单选题】听力原文：W: Mike, how did you enjoy your trip? What did you think of les Angeles? M: it was all right. I liked it better than I thought I would. The problem is transportation. The bus service is terrible,...
A.
It is the best city he's ever visited.
B.
It was worse than he had expected.
C.
It is difficult to get around in the city.
D.
The hotel service is terrible in the city.
【单选题】听力原文：W: Mike, how did you enjoy your trip? What did you think of Los Angeles? M: lt was all right. I liked it better than I thought I would. The problem is transportation. The bus service is terrible,...
A.
It is the best city he's ever visited.
B.
It vas worse than he had expected.
C.
It is difficult to get around in the city.
D.
The hotel service is terrible in the city.
【单选题】听力原文：W: Mike, how did you enjoy your trip? What did you think of Los Angeles? M: It was all right. I liked it better than I thought I would. The problem is transportation. The bus service is terrible,...
A.
It is the best city he's ever visited.
B.
It was worse than he had expected.
C.
It is difficult to get around in the city.
D.
The hotel service is terrible in the city.
【单选题】听力原文：W: Mike, how did you enjoy your trip? What did you think of Los Angeles? M: It was all right. I liked it better than I thought I would. The problem is transportation. The bus service is terrible,...
A.
It is the best city he's ever visited.
B.
It was worse than he had expected.
C.
It is difficult to get around in the city.
D.
The hotel service is terrible in the city.
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