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【简答题】
阅读短文,填空。 Birds Although (虽然) all birds may not look the same, all birds have certain things in common (共同点). All birds are warm-blooded. This means that their body temperature always stays the same. Birds breathe with lungs. A bird's body is covered with feathers. All birds have two wings. Baby birds are hatched from eggs. Birds can see very well. They can't move their eyeballs like people do, so they have to turn their heads to look at something. Birds' ears are round holes on the sides of their heads. There are about 9, 000 kinds of birds in the world. 1. There are over ____________ kinds of birds in the ____________. 2. Birds don't have ears like people do. Their ears are ____________ ____________ on the sides of their heads. 3. Birds can't move their ____________ so they have to turn their ____________ to look at something. 4. Birds have hundreds of ____________ but only two ____________ and ____________ wings.
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【简答题】营养学家指出,为了保持身体健康,必须保证每日三餐 、按时 进餐;在每日摄入的总能量中,早、中、晚餐的能量应当分别占 %、 %和 %左右。
【简答题】为了保持身体健康,必须保证每日三餐、按时进餐;在每日摄入的总能量中,早、中、晚的能量应当分别占______、______和______左右.
【简答题】为了保持身体健康,必须保证________、________在每日摄入的总能量中,早、中、晚餐的能量应当分别占30%________和________左右。
【单选题】单体镍氢电池的标称电压是(    )
A.
2.0v
B.
1.2v
C.
3.6v
D.
3.2v
【判断题】中国营养学会推荐为了保持身体健康应尽量摄入不含油脂类的食物
A.
正确
B.
错误
【简答题】为了做到合理营养,我国的营养学家将食物分为 五类 ,并形象的设计成“ ” 。为了保持身体健康,必须保证每日三餐, 进食 ;在每日摄入的总能量中,早中晚的能量应当分别占 % , % 和 % 左右。
【单选题】镍氢电池的基本单元是单体电池,每个单体电池的标称电压为( )V。
A.
1.2
B.
2.2
C.
3.2
D.
3.6
【简答题】为了保持身体健康,必须保证每日______、______进食;在每日摄入的总能量中,______、______、______餐的能量应当占______、______、______.左右.
【单选题】为了保持身体健康,在每日摄入的总能量中,早、中、晚三餐的能量比例应该是(  )
A.
3:4:3
B.
4:4:3
C.
2:5:3
D.
1:1:5
【简答题】楼层框架梁端支座采取弯锚时,弯折段长度为 。A. 15d
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