皮皮学，免费搜题
登录
搜题
【单选题】
（）、助燃物质和着火源构成燃烧的三个要素，缺少其中任何一个要素便不能燃烧。A.
有机物质
B.
可燃物质
C.
无机可燃物
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】阅读下面的短文，然后按照要求写一篇150词左右的英语短文。 Many students fail to perform well in an exam not because they lack ability, but because of the unique pressure of the exam room—the tense atmosphere, the ticking clock o...
【单选题】若有以下程序段运行后的输出结果是( ) main() { int a=2,b=5; printf("a=%%d,b=%%d\n",a,b); }
A.
a=%2,b=%5
B.
a=%d,b=%d
C.
a=%%d,b=%%d
D.
a=2,b=5
【单选题】They believe that if you want to do well in an increasingly specialized world, you must concentrate on a single area and become an expert in that field, forsaking all other subjects
A.
to give up sth valued or pleasant
B.
to talk about things that are not important
C.
to make sth develop
D.
to form a line or surface
相关题目：