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【多选题】
我国大气环境的特征(多选):A.
普遍受到尘、SO2为主的烟煤型污染
B.
在大城市或特大城市受到机动车尾气影响严重
C.
普遍受到来自太阳的紫外线侵害
D.
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举一反三
【单选题】Shall we go and help them with their work? We’d better not. They said we’d just be______if we tried to help.
A.
In the way
B.
on the way
C.
In this way
D.
By the way
【单选题】We’d just __________ our finest creation, the Macintosh, and when I turned 30, I got fired.
A.
revived
B.
released
C.
related
D.
revealed
【简答题】从销售的角度来说,市场包括哪三个要素,用公式怎么表示?
【简答题】市场的基础包括哪三个要素?
【简答题】有效市场的三要素包括哪三个？
【简答题】已知函数 且函数 恰有两个零点，则实数 的取值范围是 .
【简答题】已知函数 且 是f(x)的导函数，若 ,，则 = .
【单选题】The teacher demanded that the homework ________in the way we’d just learned.
A.
is done
B.
has been done
C.
be done
D.
was done
【简答题】Directions: Translate the following sentences into Chinese. We had wanted to let him know that no matter how difficult things got in the world, there would always be people who cared about him. We end...
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