A hygrometer is device used for determining ______.
A.
the absolute temperature
B.
atmospheric pressure
C.
wind velocity
D.
relative humidity
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参考答案:
举一反三
【单选题】If a country must decrease current consumption to increase the amount of capital goods it produces today, then it must
A.
be using resources inefficiently today, but will be more efficient in the future.
B.
be producing along the production possibilities frontier today and its production possibilities frontier will shift outward if it produces more capital goods.
C.
must be producing outside the production possibilities frontier and will continue to do so in the future.
D.
must not have private ownership of property and will have to follow planning authorities' decisions today and in the future.
【判断题】If Country A produces 6,000 units of goods and services using 600 hours of labor, and if Country B produces 5,000 units of goods and services using 450 units of labor, then productivity is higher in C...