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【单选题】
已测得晶体管各电极对地电位如题图所示，试判别晶体管的工作状态（ ）。【图片】A.
放大
B.
截止
C.
饱和
D.
损坏
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【单选题】The Ricardian model of international trade demonstrates that trade can be mutually beneficial. Why, then, do governments restrict imports of some goods?
A.
Trade can have significant harmful effects on some segments of a country's economy.
B.
The Ricardian model is often incorrect in its prediction that trade can be mutually beneficial.
C.
Import restrictions are the result of trade wars between hostile countries.
D.
Imports are only restricted when foreign-made goods do not meet domestic standards of quality.
E.
Restrictions on imports can have significant beneficial effects on domestic consumers.
【简答题】E37 — E44 (一)(二)(三)(四)(五)
【简答题】要获得数组的上界通过____函数,要获得列表框 L ist 数组的元素个数通过____属性。
【简答题】要获得数组的上界通过_____函数,要获得列表框List数组的元素总个数通过ListCont属性。
【单选题】The Ricardian model of international trade demonstrates that trade can be mutually beneficial. Why, then, do governments restrict imports of some goods?
A.
Imports are only restricted when foreign - made goods do not meet domestic standards of quality.
B.
Import restrictions are the result of trade wars between hostile countries.
C.
Trade can have substantial effects on a country's distribution of income.
D.
The Ricardian model is often incorrect in its prediction that trade can be mutually beneficial.
E.
Restrictions on imports are intended to benefit domestic consumers.
【简答题】如图所示,为尽量减少 A 、 B 两个温度不同的固体表面间的辐射传热,可以采取的措施是 ________________________ 。
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