下列定义数组的方法中( )是正确的。
A: var x = new Array[ "item1"; "item2"; "item3"; "item4" ]
B: var x = new Array("item1", "item2", "item3", "item4")
C: var x = new Array{ "item1", "item2", "item3", "item4"}
D: var x = new Array{ "item1"; "item2"; "item3"; "item4"}
A: var x = new Array[ "item1"; "item2"; "item3"; "item4" ]
B: var x = new Array("item1", "item2", "item3", "item4")
C: var x = new Array{ "item1", "item2", "item3", "item4"}
D: var x = new Array{ "item1"; "item2"; "item3"; "item4"}
举一反三
- 开启第二条生产线的标准（） A: 早餐ITEM数≥280/午餐ITEM≥241 B: 早餐ITEM数≥281/午餐ITEM≥240 C: 早餐ITEM数≥241/午餐ITEM≥280 D: 早餐ITEM数≥200/午餐ITEM≥180
- The opportunity cost of an item is ( ). A: the price of that item B: what you give up to get that item C: the time you have to spend on earning enough money to buy that item D: the cost of producing that item
- 有列表定义如下：[br][/br]group1 = [ ["萧峰", 98], ["杨过", 96] ] 要提取两位大侠的名字"萧峰"和"杨过"，应该采用下面哪种方法 A: n = [ item[0] for item in group1 ] B: n =[ item[1] for item in group1 ] C: n = group1[0],group1[1] D: n = [ item for item in group1 ]
- What is true about the point-to-point comparison? A: We move back and forth between Item A and Item B at each point. B: We should discuss items in the same order throughout the essay. C: Shifting between Item A and Item B makes the comparison easy to follow. D: It fully discusses Item A at first and then turns to Item B. E: It presents all the information about Item A and then all that about Item B.
- A credit item is an item for which a country must pay. ( )