为什么疲劳时吃点高蛋白？
参考答案：
人体热量消耗太大也会感到疲劳，故应多吃富含蛋白豆腐、牛奶、猪牛肉、鱼、蛋等。
每个人的生命价值大小不同，这是因为个人成就大小的不同。[ ]
When he was in the office, he preferred ____ something ____ nothing.
A．to do; than do
B．to do; rather than
C．doing; rather than doing
D．doing; to doing
