肥胖指超过标准体重（）
A.20%
B.10%
C.15%
D.25%
E.30%
参考答案：A
---It ___ me nearly 2 hours ___ my homework every day.
---Me, too.
A．costs; do
B．spends; doing
C．takes; to do
D．spent; doing
简述公务员退休的方式。
