Singer和Nilcoson在1972年提出的“流动镶嵌模型”强调了质膜的()。
A.流动性
B.半透过性
C.不对称性
D.统一性
A.流动性
B.半透过性
C.不对称性
D.统一性
A、perform
B、conduct
C、confer
D、launch
A.in advance
B.in front
C.ahead
D.in excess
These ______ did unusually well in the contest, so the judges didn’t know whom to give prize to. A. woman singers B. women singers C. women singer D. womans singers
_________the new pop singer built her first album piece by piece.
A. Over a year and a half
B. Over half and a year
C. Over one and a half year
D. Over year and half
In this article, you are not told that Billy Joel is a ______.
A. singer
B. composer
C. performer
D. guitar player
Stormy applause broke forth______the singer appeared on the stage.
A.a moment
B.the moment
C.in a moment
D.at the moment
A.at her better
B.at her best
C.better
D.on her best