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A、
B、
C、
D、

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What do we learn from the passage? 查看材料A.The government will reduce the over-reliance on test results．B.The school principal is not involved in the teacher's evaluation．C.Teachers rated ineffective for two successive years may lose their joB.D.The teacher's teaching materials are not included in evaluation．

A.The
B.
B.The
C.
C.Teachers
D.
D.The
E.

单项选择题

民航飞机飞行活动主要在（）进行。 A、对流层 B、平流层 C、电离层 D、对流层和平流层

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