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【单选题】
细胞内编码20种氨基酸的密码子总数为A.
16
B.
64
C.
20
D.
61
E.
60
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举一反三
【简答题】Conversation 1 1. What does Tom's pen pal do? A. She's a teacher. B. She's a doctor. C. She's a nurse. 2. What language does Tom's pen pal speak? A. English. B. French. C. English and French.
【简答题】Conversation 1 1. What is the boy doing? A. Reviewing his lessons in school. B. Studying at home. C. Taking the final exam. 2. What will the woman do when she gets home? A. Help the boy do his homewor...
【简答题】Conversation 1 1. Which of the following music does the man like best? [ ] A. Classical music. B. Rock music. C. Jazz. 2. What does the man advise the woman to do? [ ] A. Come to his house thi...
【判断题】Listen to the conversation again. Circle T fro true or F for false. Conversation 1 1. The man books a window seat.
A.
正确
B.
错误
【多选题】Conversation 1 1. Listen to a conversation and check the things the man wants to do. 选出正确答案
A.
To sit next to the woman.
B.
To open the window.
C.
To smoke.
D.
To put on his coat.
E.
To use the woman’s phone.
【简答题】What does English food usually major on?
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