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【简答题】
简述什么是局部阻力、什么是局部水头损失。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】如图，在△ABC中，∠ABC=∠C=2∠A，BD⊥AC于D，求∠DBC的度数。
【简答题】已知：如图，在△ABC中，∠ACD是△ABC的外角，∠ABC与∠ACD的平分线相交于点A 1 ，∠A 1 BC与∠A 1 CD的平分线相交于点A 2 ，如果∠A 2 =m°，那么∠A=______°（用含m的代数式表示）．
【单选题】Why does Mary write to Lucy?
A.
Because she wants to play a camp with Mary.
B.
Because she wants to enjoy the sunshine with Mary.
C.
Because she wants to introduce a new drink to Mary.
D.
Because she wants to share her drink with Mary.
【单选题】某女,62岁,因白带多,阴道出血行宫颈活检,诊断为宫颈癌,临床分期IIA,其病变应累及的部位是
A.
宫颈、阴道上1/3，无宫旁浸润
B.
宫颈、阴道上1/3及宫旁浸润
C.
宫颈、宫旁浸润但未达盆壁
D.
宫颈、阴道已达下1/3但无宫旁浸润
E.
局限于宫颈，无阴道及宫旁浸润
【单选题】Mary wants to buy a handbag .(对划线部分提问)
A.
Which Mary wants to buy?
B.
What Mary wants to buy?
C.
What does Mary want to buy?
D.
What do Mary want to buy?
【单选题】— What does your mom often say to you? — She often asks me mobile phone games too much.
A.
not play
B.
not playing
C.
not to play
D.
not played
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