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【单选题】
既能涩肠止泻，又能安蛔止痛的药物是A.
五味子
B.
金樱子
C.
诃子
D.
肉豆蔻
E.
乌梅
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反馈参考答案：
举一反三
【单选题】— I hear that Jack had a car accident yesterday. — I won't believe it. He ______.
A.
shouldn't have been so careless
B.
wouldn't be so careless
C.
couldn't be so careless
D.
mustn't be so careless
【单选题】He won't believe anything _________ he sees it with his own eyes.
A.
if
B.
as long as
C.
unless
D.
in case that
【简答题】根据句意及首字母或汉语提示完成单词。 1. I won't believe it until I see it with my o______ eyes. 2. My parents tell me not to c______ other's homework. It's bad for study. 3. Tom was really l______ to get the singer st...
【多选题】高速钢用于高速切削的刃具，如钻头、车刀，下列说法不正确的有（）。
A.
适用于300℃高速切削的刃具
B.
适用于400℃高速切削的刃具
C.
适用于500℃高速切削的刃具
D.
适用于600℃高速切削的刃具
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