【单选题】Chronos Inc. designs and markets different brands of cycling watches. Each brand has a single unique feature: the Chronos Cosmos has a heart rate monitor, the Chronos Acumen is designed for older cycl...
【简答题】One reason Americans eat so many calories is that we tend to eat large portions(分量). Studies find that hamburgers and fries are generally offered in serving sizes two to five times larger than the app...