关于东北地区农作物的叙述，正确的是：A.玉米分布普遍，由北向南的比例逐渐减少B....

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【单选题】

关于东北地区农作物的叙述，正确的是：

玉米分布普遍，由北向南的比例逐渐减少

小麦和大豆种植比例由由逐渐增多

水稻种植已扩展到北纬45°以北的黑龙江沿岸

辽东低山丘陵和半岛丘陵区是我国最大的桑蚕产区

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举一反三

【单选题】The existing law states that ______.

convictions can be made on confessions and statements taken by police officers from accused persons are valid legal evidence

convictions can't be made on confessions alone and there should be a third party when taking statements from accused persons

convictions can be made on confessions and a third party should be present when taking statements from accused persons

convictions can't be made on confessions alone and the statements taken by police officers from accused persons are valid legal evidence

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【单选题】The existing law States that ______.

convictions can be made on confessions and statements taken by police officers from accused persons and are valid legal evidence

convictions can't be made on confessions alone and there should be a third party when tak ing statements from accused persons

convictions can be made on confessions and a third party should be present when taking statements from accused persons

convictions can't be made on confessions alone and the statements taken by police officers from accused persons are valid legal evidence

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【单选题】我国基本比例尺地形图采用的分幅方法市( )

矩形分幅

经纬线分幅

行列式分幅

任意分幅

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【单选题】我国基本比例尺地形图采用( )分幅方法

正方形

平行四边形

矩形

梯形

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【多选题】硒的来源主要有

海产品

谷物胚乳

动物内脏

绿色蔬菜

水果

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【简答题】硒的污染主要来源于哪些行业（列举3－4个）？

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【简答题】硒的主要食物来源是什么?

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【单选题】The existing law states that ______.

convictions can be made on confessions and statements taken by police officers from accused persons are valid legal evidence

convictions can’t be made on confessions alone and there should be a third party when taking statements from accused persons

convictions can be made on confessions and a third party should be present when taking statements from accused per sons

convictions can’t be made on confession alone and the statements taken by police officers from accused persons are valid legal evidence

查看完整题目与答案

【单选题】盖板梳棉机上第一落杂区长度与梳棉机总落棉率的关系是()。

第一落杂区长度越小，梳棉机总落棉率越大

第一落杂区长度越大，梳棉机总落棉率越大

第一落杂区长度与梳棉机总落棉率的多少无关

上面三种关系都不对

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【单选题】Kirchhoff's current law states that

the sum of the currents entering a junction must equal zero

the total current entering a given junction is constant, even with changes in supply voltage

the sum of the currents entering a junction must equal the sum of the currents leaving the junction

the sum of the currents around a closed loop is zero

查看完整题目与答案

convictions can be made on confessions and statements taken by police officers from accused persons are valid legal evidence

convictions can't be made on confessions alone and there should be a third party when taking statements from accused persons

convictions can be made on confessions and a third party should be present when taking statements from accused persons

convictions can't be made on confessions alone and the statements taken by police officers from accused persons are valid legal evidence

查看完整题目与答案

【单选题】The existing law States that ______.

convictions can be made on confessions and statements taken by police officers from accused persons and are valid legal evidence

convictions can't be made on confessions alone and there should be a third party when tak ing statements from accused persons

convictions can be made on confessions and a third party should be present when taking statements from accused persons

convictions can't be made on confessions alone and the statements taken by police officers from accused persons are valid legal evidence

查看完整题目与答案

【单选题】我国基本比例尺地形图采用的分幅方法市( )

查看完整题目与答案

【单选题】我国基本比例尺地形图采用( )分幅方法

查看完整题目与答案

查看完整题目与答案

【简答题】硒的污染主要来源于哪些行业（列举3－4个）？

查看完整题目与答案

【简答题】硒的主要食物来源是什么?

查看完整题目与答案

【单选题】The existing law states that ______.

convictions can be made on confessions and statements taken by police officers from accused persons are valid legal evidence

convictions can’t be made on confessions alone and there should be a third party when taking statements from accused persons

convictions can be made on confessions and a third party should be present when taking statements from accused per sons

convictions can’t be made on confession alone and the statements taken by police officers from accused persons are valid legal evidence

查看完整题目与答案

【单选题】盖板梳棉机上第一落杂区长度与梳棉机总落棉率的关系是()。

查看完整题目与答案

【单选题】Kirchhoff's current law states that

the sum of the currents entering a junction must equal zero

the total current entering a given junction is constant, even with changes in supply voltage

the sum of the currents entering a junction must equal the sum of the currents leaving the junction

the sum of the currents around a closed loop is zero

查看完整题目与答案

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