材料
A—Don’t follow too closely
B—Keep distance
C—Accident area
D—Road closed
E—Road work ahead
F—Two-way traffic
G—One-way traffic
H—Bend ahead
I—Bus lane
J—Electronic toll collection (ETC)
K—Service area
L—No passing
M—No parking
N—Dead end
O—No horn
P—Falling rocks
Q—Slow down at exit
Examples: (Q)出口慢行(M)禁止泊车
()服务区
A. A
B. B
C. C
D. D
E. E
F. F
G. G
H. H
I. I
J. J
K. K
L. L
M. M
N. N
O. O
P. P
Q. Q
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