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【单选题】
按设计压力P，压力容器划分为4个压力等级，其中设计压力在大于等于1.6MPa，且小于10.0MPa范围内(1.6MPa≤p<10.oMPa)的属于（ ）容器。A.
低压
B.
中压
C.
高压
D.
超高压
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反馈参考答案：
举一反三
【单选题】Value added is equal to the value of a firm's production minus
A.
all of its costs of production.
B.
labor costs.
C.
investment expenditures.
D.
intermediate goods used in production.
【简答题】简述室内空间类型
【单选题】The value added of an item produced refers to:
A.
a firm's profits on the item sold.
B.
the value of the labor inputs in the production of an item.
C.
the value of a firm's output less the value of its costs.
D.
the value of a firm's output less the value of the intermediate goods that the firm purchases.
【单选题】If the domestic value added before an import tariff for a product is $500 and the domestic value added after the tariff is $550, the effective rate of protection is:
A.
5 percent
B.
8 percent
C.
10 percent
D.
15 percent
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