常用的起重机具有哪些?
参考答案:
千斤顶、手动链式起重机(倒链)、绞车和杆等。
常用的起重机具有哪些?
参考答案:
千斤顶、手动链式起重机(倒链)、绞车和杆等。
ingredient) but all that sugar means they'll be high in calories and give you little nutrition.
A granola (麦片) bar is a good example of a snack that people think is healthy. Although granola
bars can be a good source of certain vitamins and nutrients, many also contain a great deal of fat,
including a particularly harmful type of fat called trans fat (反式脂肪酸). Check the Nutrition Facts
label on the package to be sure.
1. People think that granola bar is healthy because ________.
A. it is a good source of calories
B. it provides trans fat
C. it contains some vitamins
D. it is natural
2. In choosing healthy snacks, we should try to make sure that ________.
A. they are all natural or pure
B. they are high in nutrition
C. their packages are good
D. they contain harmless fat
3. Teens need snacks to ________.
A. keep a good figure
B. gain weight
C. help grow
D. keep healthy
4. According to the passage, all the following snacks are good EXCEPT ________.
A. peanut butter
B. fries
C. lowfat yogurt
D. wholegrain bread