含3个氨基酸残基的肽称为（）
A.肽
B.二肽
C.三肽
D.寡肽
E.多肽
参考答案：C
解析：考查蛋白质的构成。
— Shall we go to Monkey Island for a picnic tomorrow?
— If it _____ fine. [ ]
A. is
B. was
C. is going to be
D. will be
