题目内容

根据录音,选择合适的答案() 查看材料

A. Having a rest.
B. Going on with the work.
C. Waiting another minute.
D. Eating some snacks.

查看答案
更多问题

蛋白质的二级结构是()。

A. 氨基酸的种类和排列顺序
B. α螺旋、β折叠和π螺旋
C. 球形蛋白质
D. 亚基集结
E. 变性

根据录音,选择合适的答案() 查看材料

A. Fix the power plug.
B. Figure out the sound problem.
C. Press the play button again.
D. Make some sound.

根据录音,选择合适的答案() 查看材料

A. She doesn"t want to help the man.
B. She can"t fLX the computer.
C. She can"t send the e-malls now.
D. She doesn"t know how to send e-mails.

构成细胞表面的成分()。

A. 葡萄糖
B. 核糖
C. 脱氧核糖
D. 糖原
E. 糖脂

答案查题题库