B. tomorrow
C. before the day
D. the day before
[单选题]________________( )49.A . soB. AndC. ButD. or
[单选题]42______. A, mysteriousB. ridiculousC. fascinatingD. apparent
() 1.A.西红柿 B.茄子 C.土豆
[单选题]A. .review B. performance C. practice D. homework
A.αB.α C.α D.不能确定显著性检验中,若显著性水平为,则犯第二类错误的概率为().A.B.C.D.不能确定
[单选题]A. fetched B. allowed C. expected D. took
[单选题]A. sinceB. cousinC. withinD. violin
[单选题]A. finding B. proving C. deciding D. knowing
[单选题]A. packed B. opened C. picked up D put aside
(B.)递减. (C.)不连续. (D.)连续.【例2】设$g(x)=\int_{0}^{x}f(u)du$,其中$f(x)=\begin{cases}\fra