被称之为“发明之母”和“产业粮食”的技术是( )。
A.信息技术
B.生物技术
C.能源技术
D.新材料技术
参考答案:D
函数在[1,2]上符合拉格朗日定理条件的ζ值为:()
A.
B.
C.
D.
Mother’ s Day is coming . I’ m thinking about _____ .
A.what present I gave her
B.where we had a big meal
C.how I will give her a surprise
D.if I planned a party for her