健美训练中，两次锻炼间的间隔在（）小时才能使体力得到恢复。
A.41-63
B.24-48
C.48-60
D.48-72
参考答案：D
模具制造工艺的选择依据
The president claimed the terrorists should be held responsible（）the explosions that happened last month in London.
A.for
B.on
C.at
D.about
