.“双十一”是淘宝网开展的一个促销活动日,在当天很多商家会参与打折。
A. 对
B. 错
Please fill in the blanks with one missing word based on your notes of the video.Giving ___1______ ,____2______ and _____3________homework, _____4_____ between students and teachers and parents and teachers, doing all of these tasks ___5____has now become the ____6____ in China.For Ed-Tech companies, now is also a beginning of their _____7____ to smart education. For instance, smart education functions that ____8____ _____9_______in grading homework and school-home ___10_____ will remain ___11_______ even after students return.
“哲学家们只是用不同的方式解释世界,问题在于改变世界。”这鲜明地表明了马克思主义()和()的基本特征。
A. 重视实践
B. 重视经验
C. 以改造世界为己任
D. 以批判世界为己任
在顺序表(8,11,15,19,25,26,30,33,42,48,50)中,用二分(折半)法查找关键码值20,需做的关键码比较次数为?( )
A. 2
B. 3
C. 4
D. 5