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第1题

She was so _____ in her job that she didn’t hear someone knocking at the door. 　 　　 (A) attracted (B) drawn
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第2题

设 α 1 , α 2 , α 3 是齐次方程组 Ax=0 的基础解系，则下列向量组中也可作为 Ax=0 的基础解系的是(本题4.0分) A、 2 B、 -2 C、 1 D、 -1
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第3题

When she was criticized, she claimed that it was outside her _____of responsibility. 　 　　 (A) field (B) limit
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第4题

The world is trying every means to _____the friendship between the two countries. 　 　 　 (A) raise (B) promote
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