An investor enters intoa short forward contract to sell 100,000 British pounds for U.S. dollars at the exchange rate of 1.4000 U.S. dollars per pound. The investor would ______ (gain/lose) ______ (please input the money amount) if the exchange rate at the end of contract is 1.42000.
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以下不能创建一个字典的语句是
A. dict1 = {}
B. dict2 = {3:5}
C. dict3 = {[1,2,3]: "uestc"}
D. dict3 = {(1,2,3): "uestc"}
下列表达式的值为True的是
A. 5 + 4j > 2 - 3j
B. 3 > 2 > 2
C. (3, 2) < ('a', 'b')
D. 'abc' > 'xyz'
下面哪种说法是错误的?
A. 除字典类型外,所有标准对象均可以用于布尔测试
B. 空字符串的布尔值是False
C. 空列表对象的布尔值是False
D. 值为0的任何数字对象的布尔值是False
哪个不是Python合法的标识符
A. int32
B. 40XL
C. self
D. __name__