原植物属于伞形科的是A.小茴香B.栀子C.连翘D.苦杏仁E.五味子...

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【单选题】

原植物属于伞形科的是

小茴香

栀子

连翘

苦杏仁

五味子

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参考答案：

举一反三

【单选题】以下文件格式中不属于视频文件的是( )

MP4

MPEG

WAV

WMV

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【单选题】下列可抑制H+/K+-ATP酶的活性用于抗消化性溃疡的药物是()

昂丹司琼

联苯双酯

法莫替丁

奥美拉唑

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【单选题】下列方程描述的离散系统单位序列响应为h(k) 假设h1(k)是系统的单位序列的响应,则h(k)与h1(k)的关系正确的为( )

h(k)=h1(k+1)

h(k)=h1(k-1)

h(k)=-h1(k-1)

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【单选题】以下文件格式中不属于视频文件的是_________。

WAV

MPG

MOV

AVI

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【单选题】The HO model assumes that ________ are identical between countries.

tastes

technology sets

factor endowments

Both A and B

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【单选题】One of the predictions of the HO model is that

countries with different factor endowments but similar technologies and preferences will have a strong basis for trade with each other.

countries will tend to specialize, but not completely, in their comparative advantage good.

reciprocal demand leads to an equilibrium terms of trade by inducing changes in both demand and supply.

All of the above.

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【单选题】( )的收入不是美容院收入的组成部分。

销售

项目

会员卡

投资分红

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【单选题】抛物线y=a（x-h） 2 -k的顶点坐标是（　　）

（-h，k）

（h，k）

（-h，-k）

（h，-k）

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【简答题】已知f(k)=u(k)-u(k-2)，h1(k)=δ(k)-δ(k-1)，h 2 (k)=a k u(k-1)，求y(k)=f(k)*h 1 (k)*h 2 (k)。

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【单选题】Which of the following is not one of the theories that have emerged as alternatives to the HO model?

The human skills theory.

The product life cycle theory.

The similarity of preferences theory.

All of the above have been suggested as alternatives to the HO model.

查看完整题目与答案

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【单选题】以下文件格式中不属于视频文件的是( )

查看完整题目与答案

【单选题】下列可抑制H+/K+-ATP酶的活性用于抗消化性溃疡的药物是()

查看完整题目与答案

【单选题】下列方程描述的离散系统单位序列响应为h(k) 假设h1(k)是系统的单位序列的响应,则h(k)与h1(k)的关系正确的为( )

h(k)=h1(k+1)

h(k)=h1(k-1)

h(k)=-h1(k-1)

查看完整题目与答案

【单选题】以下文件格式中不属于视频文件的是_________。

查看完整题目与答案

【单选题】The HO model assumes that ________ are identical between countries.

查看完整题目与答案

【单选题】One of the predictions of the HO model is that

countries with different factor endowments but similar technologies and preferences will have a strong basis for trade with each other.

countries will tend to specialize, but not completely, in their comparative advantage good.

reciprocal demand leads to an equilibrium terms of trade by inducing changes in both demand and supply.

All of the above.

查看完整题目与答案

【单选题】( )的收入不是美容院收入的组成部分。

查看完整题目与答案

【单选题】抛物线y=a（x-h） 2 -k的顶点坐标是（　　）

查看完整题目与答案

【简答题】已知f(k)=u(k)-u(k-2)，h1(k)=δ(k)-δ(k-1)，h 2 (k)=a k u(k-1)，求y(k)=f(k)*h 1 (k)*h 2 (k)。

查看完整题目与答案

【单选题】Which of the following is not one of the theories that have emerged as alternatives to the HO model?

The human skills theory.

The product life cycle theory.

The similarity of preferences theory.

All of the above have been suggested as alternatives to the HO model.

查看完整题目与答案

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