问题
单项选择题
含巯基的氨基酸是（）
A.半胱氨酸
B.丝氨酸
C.蛋氨酸
D.脯氨酸
E.鸟氨酸
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
含巯基的氨基酸是（）
A.半胱氨酸
B.丝氨酸
C.蛋氨酸
D.脯氨酸
E.鸟氨酸
参考答案：A
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6. We come from Canada.
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7. I have a small mouth.
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8. Those are their clothes.
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9. My jacket is blue and white.
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10. They like playing soccer.
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