一切生物体生命现象的基本单位是()
A.组织
B.细胞
C.肌肉
D.骨骼
E.神经
参考答案:B
解析:细胞是一切生物体生命现象的基本单位。
以花、果实、种子作为分类依据的植物是[ ]
A.裸子植物
B.被子植物
C.蕨类植物
D.藻类植物
What a pity! The little girl had to drop out of school and _____ the responsibilities that
most parents can take, after her parents passed away in the earthquake. [ ]
A. take on
B. take in
C. take off
D. take after