以下程序的输出结果是： fo = open(“texttxt”,‘w+’) x,y =‘this is a test’,‘hello’ fo.write(’{}+{} ’format(x,y)) print(fo.read()) fo.close()

文件dat.txt里的内容如下：QQ&Wechat Google & Baidu以下程序的输出结果是fo = open("dat.txt", 'r') print(fo.read(7).rstrip()) fo.close()

‌以下程序的输出结果是：( )‏‌fo = open("text.txt",'w+')‏‌x,y ='this is a test','hello'‏‌fo.write('{}+{}\n'.format(x,y))‏‌print(fo.read())‏‌fo.close()‏‌‏ A: this is a test hello B: this is a test C: this is a test,hello. D: this is a test+hello

‌test1.txt文件第一行内容为：ABCDEFGHIJKLMN，执行下列代码后，运行结果是：‎‌fo = open("test1.txt", "r+")‎‌str = fo.read(5);‎‌position = fo.tell();‎‌print("当前文件位置 : ",position)‎‌‎ A: 5 B: 0 C: 1 D: 以上都不对

test1.txt文件第一行内容为：ABCDEFGHIJKLMN，执行下列代码后，运行结果是：fo = open("test1.txt", "r+")str = fo.read(5);position = fo.tell();print("当前文件位置 : ",position) A: 5 B: 0 C: 1 D: 以上都不对

文件text.txt里的内容如下：[br][/br]QQ&Wechat[br][/br]Google&Baidu[br][/br]以下程序的输出结果是（）。[br][/br]fo=open("text.txt",'r')[br][/br]fo.seek(2)[br][/br]print(fo.read(8))[br][/br]fo.close() A: Wechat B: &WechatG C: WechatGo D: &Wechat

The Chinese people love peace, __________ peace and are ready to fight for peace. A: ask fo B: long fo C: seek fo D: take fo

Juliet is new at this job, but her enthusiasm can make up for her lack of skill. A: call fo B: un fo C: opt fo D: compensate fo

Jack has been out of work for a long time,so he wants to _____ a job in this factory. A: care fo B: apply fo C: wait fo D: prepare fo

LC组成一个串联谐振回路，谐振频率为fo，把它接在串联回路中，最易通过的信号频率是 A: fo B: 大于fo C: 小于fo D: 不为fo