【单选题】使用BinaryWriter和BinaryReader读取二进制流文件时,描述错误的是( )class Program { static void Main(string[] args) { FileStream fsW = new FileStream(@"c:\1.bin", FileMode.Create, FileAccess.Write); Binary...
A.
必须先生成一个FileStream对象;再讲该对象进一步构造为BinaryWriter和BinaryReader对象。
B.
写入文件1.bin后,文件内容是 恭喜你学会了 100
C.
BinaryWriter类和BinaryReader类提供多个重载的Write方法和Read方法,方便对文件的读写。比如上例中的对字符串、整形的写入和读出。
【简答题】影响化化学平衡移动的因素主要有三种,即( )、( )和( )。
【简答题】I was waiting for a phone call from my agent. He had left at message the night before, telling me that my show was to be cancelled. I called him several times, but each time his secretary told me that...
【单选题】Murad等三位教授最早提出NO分子在人体内独特功能。近年来此领域研究有很大进展,因此这三位教授荣获1998年诺贝尔医学奖及生理学奖。下列关于NO的叙述不正确的是 [ ]
A.
NO对环境的危害在于破坏臭氧层、形成酸雨等方面
B.
NO可以是某些高价N物质的还原产物也可以是某些含低价N物质的氧化产物
C.
实验室制取少量的NO可以用Cu和浓HNO 3 反应制取,且只能用排水取气法收集
D.
生物体内存在少量NO能提高其生理机能,如扩张血管、促进免疫力
【简答题】I try not to be biased(偏见)but I had my doubts about hiring Stevie. His social worker assured me that he would be a good, reliable busboy. But I had never had a mentally handicapped employee. He was sh...
【简答题】影响化学平衡移动的主要因素有浓度、_________和温度等。
【简答题】影响化化学平衡移动的因素主要有三种,即( )、( )和( )。