Hello. The following is a questionnaire about the familiarity of the topic,please make a judgment based on the familiarity of the topic.Please do not leak the topics to others.Thank you for your cooperation！
Instructions：
A totally ignorant：不能说。I don't have any ideas or clues about the topic, and I can't describe it in Chinese.
B know a bit: 能说一个句子。I have some ideas or clues about the topic, but I can't describe it in Chinese.（can speak only one sentence）
C Neutral：能说2-3个句子。I have some knowledge about this topic and may be able to describe it in Chinese.（can speak 2 or 3 sentences）
D familiar：能说4-5个句子。I have some knowledge of the topic and can describe it in Chinese.（can speak a least 4 or 5 sentences）
E very familiar：能说5个句子以上。I have a good understanding of the topic and can describe it in detail in Chinese .（can speak over 5 sentences）
