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【单选题】
下列金属材料中属于脆性材料的是______。A.
低碳钢
B.
铸铁
C.
锰钢
D.
铜
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皮皮学刷刷变学霸
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【单选题】建设工程目标控制包括：①收集工程实际状况资料、②采取纠偏措施、③形成工程状况报告、④实际状况与计划目标比较等主要工作环节，其正确的工作流程是（ ）。
A.
①一③一④一②
B.
①一②一③一④
C.
②一①一③一④
D.
①一④一③一②
【简答题】实验和研讨报告
【单选题】Suppose that a country experiences growth strongly biased toward its export, ( )
A.
this will tend to leave the country's terms of trade unchanged.
B.
this will tend to worsen the country's terms of trade.
C.
this will increase the price of cloth relative to the imported good.
D.
this will tend to improve the country's terms of trade.
【单选题】Suppose that the marginal propensity to import in country A is 0.20. It means that __________.
A.
country A’s marginal propensity to consume is 0.80
B.
country A’s imports are greater than its exports by 20%
C.
if country A’s residents increases their disposable income by $100, $20 will be used for imported goods and services
D.
$20 will be spent on imports for every $100 in country A
【单选题】建设工程目标控制包括： ①收集工程实际状况资料； ②采取纠偏措施； ③形成工程状况报告； ④实际状况与计划目标比较等主要工作环节。 其正确的工作流程是( )
A.
①→②→③→④
B.
①→③→④→②
C.
②→①→③→④
D.
①→④→③→②
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