A—Don’t follow too closely J—Electronic toll collection(ETC) B—Keep distance K—Service area C—Accident area L—No passing D—Road

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