Before foreign teachers arrive in China, they frequently ask the same question.
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Chinese officials assign people to aid foreign teachers when they are in China.
A. 对
B. 错
When professor Wang was in China, she had her in-group to help her.
A. 对
B. 错
When professor Wang was in U.S., she found out that her friends would not help her in the same way.
A. 对
B. 错
对于引导型病毒，杀毒工作不需要全部清空内存。（）
A. 对
B. 错
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