【单选题】使用后磨损轻微、不经修理尚可使用的零件称为( )
【单选题】假如需要选择页面中唯一一个DOM元素,则那个是最快、最高效的选择器
【单选题】He has never driven his own car to work. B) He moved to Washington, D.C. 6 years ago. C) He was hit by a car twice in Portland. D) He now lived in Washington, D.C.
A.
He has never driven his own car to work.
B.
He moved to Washington, D.
【判断题】需求定律即需求曲线向右下方倾斜是经济学的一个基础假设。
【单选题】Once one was dependent on a kind of substance, he/she______.
A.
would require more and more of the substance
B.
could recover and never need the substance again
C.
would feel unpleasant with more of the substance
D.
must have the substance everyday
【单选题】These important documents require at once.
【单选题】Hong Zhanhui never gives up trying. It is the love and responsibility _______ has driven him to go through hardships and survive in life.
【单选题】因按照仙鹤形布局,被称为仙鹤寺的清真寺是
【单选题】require-once()函数与require()函数唯一的区别是