8. George's father was angry when he knew the young cherry tree ( cut ) _________down.
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The girl is too weak to (assign)_________such heavy work .
We congratulated him on his ( admit ) _________to the Party .
一般人体最大心率与什么有关系
A. 遗传
B. 年龄
C. 肺活量
D. 有氧能力