—________ . I am going home at once.
A:Have a great time
B:OK, with pleasure
C:I'd like to
D:Sorry, I won't do that
t℃时,向一支盛有0.2克熟石灰的试管里加人20毫升水.充分振荡后,静置,试管底部仍有未溶解的固体,下列对于试管内上层澄清液体的叙述正确的是 ( )
“沧海桑田”是内外力共同作用的结果( ).(判断对错)