________ the job takes a significant amount of time, most students agree that the experience is worth it.
A:If only
B:After
C:Although
D:In case
发展农业要因地制宜,下列说法不正确的是( )
把一块长方体玻璃砖压在有“科学”两字的书上,如图所示,图中“科学”两字是( )