公共部门具有劳动密集型特征。()

The term 'heavy user' used in the text refers mainly to______.A．overweight eatersB．people who are willing to spend the most money on fast foodC．people who frequently ate at a fast food restaurantD．people who would order larger orders at a time 点击查看答案

The frequency 849MHz doesnt interfere with the planes GPS system because______.A．it's out of the range of airline communicationsB．it's like a moving Starbucks hot spotC．it was sold to a Wi-Fi service providerD．it's received by the antenna on top of a plane 点击查看答案