【单选题】Which of the following statements is true?
A.
Fashion, as a movement, is static.
B.
A fashion is destined to disappear once it is launched.
C.
A fashion will never vanish once it is launched.
D.
The upper classes play a little role in making fashion into a movement.
【单选题】下列有关牙演化特点的描述中,不正确的一项是
【判断题】二极管电路如下图,当E=4V, 电流表指示I=3.35mA, 则可判断该二极管为硅管【图片】
【多选题】塑料管埋设时,在人行道下不应小于();在车行道下不应小于();与轨道交越不应小于();与铁路交越不应小于()。
【单选题】利用( ),可以构成高速动作回路实现气缸的快速运动。
【单选题】Which statement about fashion is NOT true?
A.
Fashion is a way of showing one's personality and individuality.
B.
Fashion is not only about beautiful clothes, costumes and accessories.
C.
Fashion is defined by fashion designers.
D.
People can know about new fashion trends from websites.