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【简答题】
如图所示,槽底部沿内径为100mm的管子流出,槽中水位稳定。阀门关闭时测得R=50cm,h=1.8m。 求:(1)阀门全开时的流量 (2)阀门全开时B处的表压(阀全开时Le/d=15,入管口及出管口的阻力系数分别为0.5及1.0,设摩擦系数λ=0.018 15分 阀关时:____×1000=0.5×13600 Z A =5m 2分 (1)阀全开:对A-A和C-C截面外侧列伯努利方程: 取Zc=0____, 4分 解出:u=3.02m/s 3分 (2)对A-A到B-B截面列伯努利方程: 4分 解出p B =1.76×10 4 N/m 2 ____ 2分
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【简答题】Already well known in France as well as here at home, these authors all enjoy high international _______ . (Para. 24)
【单选题】片剂是中药片剂中常见的剂型，中药片剂制备具有一定的特殊性，常需要加入适当的赋形剂，如稀释剂、粘合剂、崩解剂、助流剂等。如果中药提取物中含大量的油类成分，最适合作为吸收剂的是（）
A.
淀粉
B.
糊精
C.
磷酸氢钙
D.
蔗糖
E.
乳糖
【单选题】France is well known _______ its fine wine and perfume in the world.
A.
for
B.
to
C.
as
D.
in
【单选题】Already well known in France as well as here at home, these authors all enjoy high international ______.
A.
benefactor
B.
charity
C.
accomplishment
D.
recognition
【简答题】France is well known for its fine art,tasty food and romantic scenery（风景）.About 75 million visitors come here every year.第三节阅读表达阅读下面的短文，然后根据短文内容回答问题。(共5小题，计10分）（2016长沙市中考英语真题） France is well known for...
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