使用积分解锁答案，让你的形成性考核不再困难。
Some things you can do to eat well in fast-food restaurants are________
ask for eatra manyonnaise and sauce and say no to “surpersizing” .
order smaller portions and eat all the food you order.
order healthy foods instead of fatty ones and drink water.
order a vegetable burrito instead of chips and eat sour cream .
Manyonnaise and sauces probably_________
make you eat more because they make your food taste better.
don’t have a lot of fat and calories.
have a lot of fat and calories.
make you eat less because they make you feel full sooner.
By eating a salad or soup before the rest of your meal,_______
you get full sooner.
you eat less of the rest of your meal.
you eat more slowly.
you eat the rest of your meal more quickly.
changes damaging losing global available
The growing similarities in diet and eating habits around the world are influencing people of various cultures in different ways. For example, Western foods are 6 1 health in the industrialized island country of Japan. Instead of small meals of seafood, rice, and vegetables, the typical Japanese diet now includes large amounts of meat, dairy products, and desserts like tiramisu, a rich Italian dish full of chocolate, cheese, and sugar. According to Japanese health researchers, such 7 2 in eating habits are related to a great increase in health problems such as heart disease, strokes, cancer, and diabetes. On the other hand, the changing 8 3 diet is having the opposite effect on the people in the CzechRepublic. The government of this European nation no longer supports meat and dairy products financially, so the cost of these foods is going up. In contrast, fresh fruits and vegetables are becoming more widely 9 4 from private markets and stands. Cooks are even serving salads to schoolchildren, and families are eating healthier home-cooked meals. For these reasons, fewer Czech men are having heart attacks, the women are 10 5 a lot of weight, and most people are living healthier lives.
1．三个刚片用（ ）两两相连，组成无多余约束的几何不变体系。
不在同一直线的三个单铰
三个铰
不在同一直线的三个铰
三个单铰
2．切断一根链杆相当于解除（ ）个约束。
1
2
3
4
3．连结两根杆件的铰有（ ）个约束。
1
2
3
4
4．一个点在平面内的自由度有（ ）个。
2
3
4
5
5．一根杆件在平面内的自由度有（ ）个。
2
3
4
5
6．静定结构的几何组成特征是（ ）。
体系几何不变
体系几何不变且无多余约束
体系几何可变
体系几何瞬变
