【单选题】That movie is a failure. I found the cinema _____ empty this evening.
【单选题】This is a crushing failure for Tom.
【简答题】在R上定义运算:x*y=x 2 +(1-y)(x+1)若不等式k 2 *m+3≥0对一切实数k恒成立,则实数m的取值范围是( )。
【单选题】What evidence has Lawrence Solomon cited to show that Chinese parenting is a failure?
A.
He has conducted a survey on the Internet and the statistics gathered in this way served as the evidence.
B.
People’ s opinions on the Internet worked as his evidence.
C.
He cited that only 10 ethnic Chinese scientists outside Chinese mainland have won the Nobel Prize.
D.
Jews are more successful compared with people from other nations.
【单选题】This is a failure, but ____, it is a good lesson.
【单选题】This is a failure, but ____, it is a good lesson.
【单选题】如果关于x的不等式|x+1|+|x+2|≥k对于一切实数x恒成立,则实数k的取值范围为