Have you decided when_____?
Yes, tomorrow morning.
Have you decided when_____?
Yes, tomorrow morning.
_______terrible weather we`ve been having these days!
关于x的一元二次方程x2+2x﹣k=0有两个实数根,则k的取值范围是________.
It`s _______here. We can`t work long hours here.
一个口袋中有红球、白球共20个,这些球除颜色外都相同,将口袋中的球搅匀,从中随机摸出一个球,记下它的颜色后再放回口袋中,不断重复这一过程,共摸了300次球,发现有120次摸到红球,则这个口袋中红球的个数约为____.
What`s ______population of China ?
China has_____ population of 1.3 billion.
甲、乙两名射击运动员参加预选赛,他们每人10次射击成绩的平均数都是9环,方差分别是s2甲=1.2,s2乙=2.4,如果从这两名运动员中选取成绩稳定的一人参赛,那么应选____(填“甲”或“乙”).
You should put_____ “s” at the end of this word.
The differences_____ these two pictures _____ colour are easy to see.