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【多选题】
一、二年生花卉与多年生花卉因不同地理区域应用方法不同,分析下列描述,选择正确选项代码。A.
哈尔滨于2017年4月末播种波斯菊，9月采种后枯萎死亡，依据其物种生物学特征，划分为一二年生花卉类别。
B.
一串红、矮牵牛在上海为多年生植物，在哈尔滨因气候不适应，多年生植物对本地气候不适宜，因而仅作一年生栽培。
C.
紫茉莉在广东为多年生栽培物种，在哈尔滨仅用于一年生栽培。属于不适宜环境下，花卉应用的“广义”一年生栽培方式。
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【多选题】某企业之前一直生产低档白酒，现在战略转型，也开始生产中高档白酒，并开始做饮料。该企业的产品组合策略包含了（ ）。
A.
向上延伸策略
B.
向下延伸策略
C.
扩大产品组合策略
D.
缩减产品组合策略
【单选题】以下不能对二维数组a进行正确初始化的语句是
A.
int a [ 2 ][ 3 ] ={0};
B.
int a [ ][ 3 ] ={{1,2},{0}}
C.
int a [ 2 ][ 3 ] ={{1,2},{3,4},{5,6}}
D.
int a [ ][ 3 ] ={1,2,3,4,5,6}
【单选题】Which of the following BEST describes macroeconomics?
A.
It analyzes the aggregate effects on the national economy of the choices made by individuals, firms, and governments.
B.
It studies the choices that individuals and businesses make when coping with scarcity.
C.
It examines how the choices that individuals made affect governments.
D.
It is not a social science because its predictions cannot be tested.
E.
Proving causation is never a problem for macroeconomics.
【单选题】The basic difference between macroeconomics and microeconomics is that
A.
macroeconomics is concerned with the forest (aggregate markets), while microeconomics is concerned with the individual trees (subcomponents).
B.
macroeconomics is concerned with policy decisions, while microeconomics applies only to theory.
C.
microeconomics is concerned with the forest (aggregate markets), while macroeconomics is concerned with the trees (subcomponents).
D.
opportunity cost is applicable to macroeconomics, and the fallacy of composition relates to microeconomics.
【单选题】Which of the following statements about microeconomics and macroeconomics is not true?
A.
The study of very large industries is a topic within macroeconomics.
B.
Macroeconomics is concerned with economy-wide phenomena.
C.
Microeconomics is a building block for macroeconomics.
D.
Microeconomics and macroeconomics cannot be entirely separated.
【单选题】In broad terms the difference between microeconomics and macroeconomics is that
A.
they use different sets of tools and ideas.
B.
microeconomics studies decisions of individual people and firms and macroeconomics studies the entire national economy.
C.
macroeconomics studies the effects of government regulation and taxes on the price of individual goods and services whereas microeconomics does not.
D.
microeconomics studies the effects of government taxes on the national unemployment rate.
【单选题】What is the fundamental difference between microeconomics and macroeconomics?
A.
Macroeconomics involves studying the economy as a whole, while microeconomics involves studying the behavior of individual industries, firms, and households.
B.
Macroeconomics concentrates on those parts of the economy involving very large amounts of money, while microeconomics concentrates on those parts of the economy involving small sums of money.
C.
Macroeconomics studies the behavior of large firms, while microeconomics studies the behavior of small firms.
D.
There is no difference, basically macroeconomics and microeconomics are one and the same.
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