A:正确分析了鸦片猖獗的原因
B:准确揭示了鸦片走私的实质
C:企图掩盖外国毒品贩子的罪恶
D:体现了历史研究的独特视角
A. Take turns.
B. Keep your desk clean.
C. Work quietly.
D. Talk quietly.
E. Keep to the right.
在下列紫荆花的结构中,将来能发育为紫荆花树上的豆荚的是( )