皮皮学，免费搜题
登录
搜题
【单选题】
听力原文： Many people catch a cold in the springtime or fall. It makes us wonder if scientists can send a man to the moon, why can't they find a cure for the common cold? The answer is easy. There're actually hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn't a cure for each one. When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and causes a blockage in it. You feel terrible because you can't breathe well. But your body is actually eating the virus. Your temperature rises and you get a fever. But the heat of your body is killing the virus. You also have a running nose to stop the virus from getting to your cells. You may feel miserable but actually your wonderful body is doing everything it can to kill the cold. Different people have different remedies for colds. In the United States and some other countries, for example, people might eat chicken soup to feel better. Some people take hot baths and drink warm liquids. Other people take medicines to relieve various symptoms of colds. There's one interesting thing to note. Some scientists say taking medicines when you have a cold is actually bad for you. The virus stays in you longer because your body doesn't develop a way to fight it and kill it. According to the passage, why haven't the scientists find a cure for the common cold?A.
There are too many kinds of cold viruses for them to identify.
B.
There is no cure.
C.
They are too busy.
D.
The virus is too small.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】阴道毛滴虫以什么方式繁殖？
【单选题】下面程序的功能是从键盘输入一行字符（不超过80个），统计其中的英文字符、数字字符、空格和其他字符的个数。例如，输入的一行字符为*****c language.*****↙输出为English character: 9digit character: 0space: 1other character: 11按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。#include#includ...
A.
第9行： gets(str) 第10行： str[i] != '\0' 第12行： str[i] >= 'a' && str[i] <= 'z' || str[i]>= 'A' && str[i] <= 'Z' 第14行： str[i]>= '0' && str[i] <= '9'
B.
第9行： scanf("%s",str) 第10行： str[i] != '\0' 第12行： 'z' >= str[i] >= 'a' || 'A' <= str[i] <='Z' 第14行： 9>= str[i] >= 0
C.
第9行： puts(str) 第10行： str[i] != '\n' 第12行： 'z' >= str[i] >= 'a' || 'A' <= str[i] <='Z' 第14行： str[i]>= 0 || str[i] <= 9
D.
第9行： getchar("%s",str) 第10行： str[i] != '\n' 第12行： str[i] >= 'a' || str[i] <= 'z' && str[i]>= 'A' || str[i] <= 'Z' 第14行： str[i]>= 0 && str[i] <= 9
【简答题】人类的基本感觉有味觉、嗅觉、视觉、听觉和（ ）。
【单选题】【 10.1 】下面程序的功能是从键盘输入一行字符(不超过 80 个),统计其中的 英文字符 、 数字字符 、 空格 和 其他字符 的个数。例如,输入的一行字符为 *****c language.***** 输出为 English character: 9 digit character: 0 space: 1 other character: 11 按要求在下面程序的空白处填写适当的表达...
A.
第 9 行： puts(str) 第 10 行： str[i] != '\n' 第 12 行： 'z' >= str[i] >= 'a' || 'A' <= str[i] <='Z' 第 14 行： str[i]>= '0' && str[i] <= '9'
B.
第 9 行： scanf("%s",str) 第 10 行： str[i] != '\0' 第 12 行： 'z' >= str[i] >= 'a' || 'A' <= str[i] <='Z' 第 14 行： 9>= str[i] >= 0
C.
第 9 行： gets(str) 第 10 行： str[i] != '\0' 第 12 行： str[i] >= 'a' && str[i] <= 'z' || str[i]>= 'A' && str[i] <= 'Z' 第 14 行： str[i]>= '0' && str[i] <= '9'
D.
第 9 行： scanf("%s",str) 第 10 行： str[i] != '\n' 第 12 行： str[i] >= 'a' || str[i] <= 'z' && str[i]>= 'A' || str[i] <= 'Z' 第 14 行： str[i]>= 0 && str[i] <= 9
【简答题】阴道毛滴虫的繁殖方式为( )。
【单选题】GD refers to ____.
A.
Grammar-Discussion
B.
Given-Duty
C.
Guided-Discovery
D.
Grammar-Discourse
相关题目：