完形填空。 | ||||
Hidden passengers traveling in ships, trains, or even cars can be a terrible trouble-especially when they | ||||
|
1-5: BCDAC 6-10: BDBDB 11-15: ACDAD 16-20: CBAAC;
完形填空。 | ||||
Hidden passengers traveling in ships, trains, or even cars can be a terrible trouble-especially when they | ||||
|
1-5: BCDAC 6-10: BDBDB 11-15: ACDAD 16-20: CBAAC;