下列变异能够传给后代的是( )
A:晒黑的皮肤
B:烫的卷发
C:切的双眼皮
D:能够卷舌
____
造化钟神秀,____ 。荡胸生层云,____ 。 (杜甫《望岳》)
Travelers ______ that they should bring their ID cards with them.