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【简答题】
Change each group of two sentences into one. Use a comma (,) if necessary. The first one has been done for you. Model: Foreigners often have difficulty with English spelling. English spelling is not always logical(有逻辑的). Foreigners often have difficulty with English spelling, which is not always logical . 1. The operation was a success. Dr. Hunter performed the operation yesterday.
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皮皮学刷刷变学霸
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【单选题】目前Android操作系统和iOS操作系统是平板电脑和智能手机上广泛使用的操作系统。下列有关Android操作系统及其平台上的应用程序的叙述中，错误的是___________。
A.
所有的 Android 应用程序均是采用 C 语言或 C++ 语言编写的
B.
Android 操作系统是以 Linux 操作系统内核为基础的操作系统
C.
Android 操作系统是完全开源的（部分组件除外），任何厂商都可以免费使用
D.
Android 应用程序的后缀是 APK ，将 APK 文件直接传到（下载）到平板电脑或智能手机中即可安装和运行
【单选题】以下哪种操作可以有效防护智能手机操作系统安全(
A.
下载安装腾讯QQ
B.
使用专]软件实时监控手机运行状态
C.
给手机设置密码，密码是自己的生日
D.
经常打开微信，链接各种网站。
【单选题】"The people in the apartment upstairs must have a lot of children." "I don't know how many _______," but it sounds as if they have a dozen."
A.
children do they have
B.
do they have children
C.
children they have
D.
they have children
【多选题】作为动画，我们今天又可以作怎么样的理解呢？
A.
它是讽刺幽默漫画与叙事连环画架构起来的的视觉形态
B.
它是付诸声音（背景音乐、拟声、旁白）为一体的艺术形式
C.
它与我们的认知世界无关
D.
它是运用了影视语言共同结合的一种综合艺术类别
【简答题】Students these days often have a lot of worries. Sometimes they have problems with their schoolwork, and sometimes with their friends. Some people think the worst thing is to do nothing. Laura Mills, ...
【简答题】Students these days often have a lot of worries. Sometimes they have problems with their schoolwork, and sometimes with their friends. . Some people think the worst thing is to do nothing. Laura Mills...
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