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【判断题】
函数在开区间(a,b)内的导数大于零,则函数在该区间上是凸的。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】以下哪项说法是正确的? A：执法部门在执法活动中，应当注重教育和纠正违法行为 B：违法行为轻微并及时纠正，没有造成危害后果的，予以从轻或减轻行政处罚 C：对查封、扣押的物品，执法部门需妥善保管，并可向当事人收取保管费用 D：不实施查封、扣押措施可以达到目的的，仍可以实施查封、扣押措施
【单选题】单项选择。 I'd like some ______, please. [ ]
A.
sandwich and milk
B.
sandwiches and milk.
C.
sandwich and milks
D.
sandwiches and milks
【简答题】阅读理解 Sandwich is an Englishman. He lives in the 18th century. Sandwich is rich, but he likes to played cards for money. He often play f'or 24 hours, and doesn't even stop to have his mcals. He ordcrs ...
【单选题】Sandwich was an Englishman. He lived in the 18th century. Sandwich was rich, but he liked to play cards for money. He often played for twenty-four hours, and didn't even stop to have his meals. He ord...
A.
an Englishman
B.
an American
C.
a Frenchman
【单选题】Sandwich made the food 'sandwich' because he ______.
A.
liked eating
B.
liked to make food
C.
wanted play cards while eating
【单选题】( )是一部促进全国农业机械化发展的法律。
A.
《农业机械化促进法》
B.
《农业机械安全监督管理条例》
C.
《江苏省农业机械管理条例》
D.
《江苏省农业机械安全监督管理条例》
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