未分类题阅读以下程序#include<stdio,h>main( ){ int case；float printF；printf(“请输入2个数：”)；scanf(“％d％f”，&zase，&rintF)；prinff(“％d％f＼n”，case，printF)；}该程序在编译时产生错误，其出错原因是
单项选择题垄断竞争的行业将不断有新企业进入，直到需求曲线刚好接触到( )。 A．边际成本曲线 B．平均成本曲线 C．边际收益曲线 D．平均不变成本曲线
未分类题听力原文：W: Hi, Mr. Wells.M: Good morning, Xiao Min.W: I heard that you are going to travel to Singapore?M: Right after your Spring Festival.W: Then when will you be back?M: I've no idea. There are still lots of countries on my plan to visit.W: So how many countries have you finished?M: China is the third station, and I have stayed here for more than half a year till the Festival.W: Will you come back again?M: Surely I will.(12)A．One.B．Two.C．Three.D．Four.
未分类题心理咨询：小孩怕人体图怎么办？
未分类题心理咨询：如何培养孩子独立自主的能力，有哪些要领
