A、 y=-x+3
B、 y=-2x
C、 y=-2x+1
D、 y=5x+3
答案:D
A、 y=-x+3
B、 y=-2x
C、 y=-2x+1
D、 y=5x+3
答案:D
A. How often
B. How soon
C. How long
D. How far
A. may
B. must
C. will
D. can
A. make
B. made
C. makes
D. making
A. {x|1<x<5}
B. {x|x>5或x<1}
C. {x|1≤x≤5}
D. {x|x≥5或x<1}
A. will watch
B. was watching
C. watched
D. have watched
A. 1
B. 2
C. 3
D. 4
A. Where
B. When
C. Why
D. How
A. so
B. very
C. too
D. much
A. putting off
B. putting on
C. putting down
D. putting away
A. open
B. to open
C. opened
D. opening