A:细胞核
B:液泡
C:细胞质
D:叶绿体
太平天国运动的主要功绩在于( )
We could see the ____ (happy) on his face after he heard the bad news.
下列叙述中,与植物生长素(生长素类似物)的生理作用无直接关系的是( )