第14064题 单选
Python程序中向文件写入和读取JSON数据的空格处应填入的json模块方法是?
import json
import csv
fam = {'name':'xiaoming','age':18,'gender':'nan'}
with open('family.csv','w') as f:
    json.    (fam,f)
with open('family.csv','r') as f1:
    read1 = json.    (f1)
    print(read1)
A

reader,writer

B

writer,reader

C

dump,load

D

load,dump