执行以下程序,输入”China520”,输出结果是: w = input() for x in w: if '0'<= x <= '9': continue else: k = w.replace(x,'')print(k) A: Chin520 B: China520 C: China D: 520

'520' + '1314'=( )

表达式str(5)+"20"的结果正确的是（） A: 520 B: ‘52’ C: 7 D: ‘520’

测定粉质曲线时，若粉质曲线中线峰值位于（），重新测定时需增加加水量。 A: <480 B: 480~520 C: 500~520 D: >520

【单选题】执行以下程序段后 printf("%s,%8s,%8.3s","china","china","china"); 输出结果为() ( 说明:□代表一个空格) A. china, □□□china, □□□□□chi B. china, □□□china, □□□china C. china, china, china D. china,china □□□, chi□□□□□

printf(“%3s,%7.2s,%.4s%-5.3s ”, “CHINA”, “CHINA” ”, “CHINA”, “CHINA”);

以下程序段​void main()​{​printf(“%s,%4s,%4.2s,%-4.2s\n”,”china”, ”china”, ”china”, ”china”);​}​运行的结果是 。（■表示空格）​ A: china,chin, ch,ch B: china,hina, ■■ch,ch C: china,china, ■■ch,ch D: china,china,■■ch,ch■■

Invented in China, paper moved out of China, first to Samarkand and then into Europe from the Islamic portals of Sicily and Spain. A: Paper, which was invented in China, moved out of China B: Paper, when was invented in China, moved out of China C: Paper, where was invented in China, moved out of China D: Paper, what was invented in China, moved out of China

Which is NOT one of China’s three major telecommunications corporations? A: China Telecom B: China Mobile C: China Unicom D: China Netcom

The first commercial bank in China is（ ） A: People’s Bank of China B: Agricultural Bank of China C: Bank of China D: Imperial Bank of China