____＞____

选词填空。

    Do you often eat lunch at school?How do students____about school lunches?

China

    Most schools have dining rooms．They have ____for students，for example，noodles，rice，pizza， ____，and vegetables．Most students think that Chinese food is delicious but the Western food tastes ____．

Australia

    Meat pies and cookies are all traditional ____in Australian school shops．But the country ____more attention to children's health．At school，students don't often see them．What they see is much ____food．Students can see cookies，chocolate and soft drinks only ____a week．What they often eat is healthier green foods such as sushi，corn and watermelons．

South Africa

    Most South African schools do not have meals at all．Classes ____at 1：30 pm and students get their own lunches．Many students ____food from home,usually sandwiches．Fast food sells the best among(在……中间)students．So it causes a rise in obesity(肥胖)among children．

若(x₁，y₁)，(x₂，y₂)，(x₃，y₃)都是y=$-\frac{5}{x}$的图象上的点，且x₁＜0＜x₂＜x₃.则下列各式正确的是（   ）                                                          

某粒子的结构示意图为，下列说法正确的是：