【单选题】以下哪一个是阿司匹林和对乙酰氨基酚组成的前药()
【简答题】I had hidden the long black bag in the garage for the past two days. Tonight, in the dark, I would finally take it away. If everything went OK, it would be done by morning. But I had to be sure no one...
【单选题】瘦肉精是一类对人体健康危害极大的化学物质,政府已严禁在猪饲料中添加瘦肉精.常见的瘦肉精化学式为C 12 H 18 OCl 2 N 2 ,下列有关这种瘦肉精的说法中正确的是( )
B.
分子中碳、氢、氧三种元素的质量比为72:9:8
D.
由C 12 H 18 O、Cl 2 、N 2 三种分子组成
【简答题】Everyone enjoys a fitting reply; it is wonderful to say the right thing at the right time! When I was a senior in high school, I 1 knew I wanted to pursue writing as a career. Writing had basically 2 ...
【多选题】确定主题类新闻的结构方式需要满足的条件有:
A.
从观众的角度考虑,容易理解,容易接受,且有吸引力,不拖沓,不繁复
B.
从电视新闻工作者的角度考虑,容易操作,能够快速组织策划并实现
【单选题】阅读本文完成单项选择21--25题 I shall never forget the day when the earthquake took place. The time was about 5 o’clock in the afternoon and I was driving along the road to take my daughter from school. Our plan ...
A.
on his way to the Post Office
B.
stopping off at a shop
D.
under a road built like a bridge
【单选题】虚拟设备是指( )。
A.
允许用户使用比系统中具有的物理设备更多的设备
D.
允许用户程序不必全部装入主存便可使用系统中的设备
【判断题】虚拟设备是指允许用户程序不必全部装入主存边可使用系统中的设备。