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【单选题】
出现黑粪提示上消化道出血量达A.
10-30ml 以上
B.
30-50ml 以上
C.
50-70ml 以上
D.
70-90ml 以上
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【简答题】Identify the different meanings of the same word in each sentence. Translante the underlined words or expressions. Recess 1. The parliament is in recess now. 2. They take a break in a deep recess in t...
【简答题】II. 完形填空: Tom and his sister __1__ a big house. The house is __2__ the foot of __3__ hill. Near __4__ there is a school. There __5__ four people in their family. Their father is a farmer. He has a __6...
【简答题】Identify the different meanings of the same word in each sentence. Translante the underlined words or expressions. Recess 1. The parliament is in recess now. 2. They take a break in a deep recess in t...
【单选题】A girl and her bicycle have a total mass of 40.0 kg. At the top of the hill her speed is 5.0 m/s, and her speed doubles as she rides down the hill. The hill is 10.0 m high and 100 m long. How much kin...
A.
2 420 J
B.
1 500 J
C.
2 000 J
D.
3 920 J
E.
4 920 J
F.
1 920 J
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