A、 that you did and saw there
B、 when you come back
C、 how did you get there
D、 if you saw models of spacecraft there
答案:D
A、 that you did and saw there
B、 when you come back
C、 how did you get there
D、 if you saw models of spacecraft there
答案:D
A. many cheaper and quicker
B. very cheaper and quicker
C. more cheaper and quicker
D. much cheaper and quicker
A. 所有大于2的整数
B. 等于2的数
C. 接近于2的数
D. 不等于2的偶数
A. How slow
B. How fast
C. What a slow
D. What a fast
A. describes
B. improves
C. prepares
D. corrects
A. 4x-5
B. 2x-8
C. 2x-3
D. 2x-4
A. 4
B. 3
C. 2
D. 1
A. was traveling
B. is traveling
C. traveled
D. travels
A. f(-4)<f(-2)<f(-1)
B. f(-2)<f(-1)<f(-4)
C. f(-2)<f(-4)<f(-1)
D. f(-1)<f(-2)<f(-4)
A. {x|-2<x<2}
B. {x|x>2或x<-2}
C. {x|-2≤x<2}
D. {x|x≥2或x<-2}
A. 某班所有高个子的学生
B. 所有的正整数
C. 相反数等于它自身的实数
D. 倒数等于它自身的实数