根据录音，选择合适的答案（） 查看材料
A. It is very boring．
B. It is very difficult．
C. It is very special．
D. It is very wonderful．
根据录音，选择合适的答案（） 查看材料
A. Hoping to get positive remarks from others．
B. Never being satisfied with others" feedbacks．
C. Being afraid to make any mistakes．
D. Not willing to communicate with others．
根据录音，选择合适的答案（） 查看材料
A. Buy a new car that saves fuel．
B. Rent a car for about half a month．
C. Make a complaint about a car．
D. Test drive a new car．
将MPF注射到G1期的细胞内，则G1期细胞的染色质开始()。
A. 解旋
B. 凝缩
C. 复制
D. 转录
E. 翻译
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