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【单选题】
幼儿思维的主要特征是（ ）。A.
直观行动性
B.
抽象概括性
C.
感知运动性
D.
具体形象性
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【单选题】[S1] Katz has done extensive research on how technological advances have affected jobs over the last few centuries—describing, for example, how highly skilled artisans in the mid-19th century were dis...
A.
S1
B.
S2
C.
S3
D.
S4
【简答题】Correct the ling participles in the following sentences. Looking out of the window, only dull grey buildings can be seen. After studying Lesson Ten , the mid-term test was given to us. Being the y...
【单选题】How have new media changed how consumers access the news?
A.
Now they spend much more time online?
B.
Thay have control over when and what news the watch.
C.
They share the news with their friends on social media sites.
D.
They don't watch the news as much anymore.
【单选题】Good News Beats Bad on Social Networks Bad news sells. If it bleeds , it leads . No news is good news, and good news is no news. Those are the classic rules for the evening broadcasts and the morning ...
A.
Good news can spread faster and farther than disasters.
B.
When you share a story with your friends, you don’t care how they react.
C.
Wordofmouth communication tended to be more positive than negative.
D.
The more positive an article, the more likely it was to be shared.
【简答题】=learn 数据的读写 1 定义文件句柄,建立句柄和文件的关联(可以将句柄理解为文件在程序里的名称) open 句柄名称 ," 打开模式 "," 文件路径 / 文件名称 "; 句柄名称和自定义函数一样,直接命名,无需指示符。 打开模式有: 或 w 写入方式打开,将文件指针指向文件头 并将文件大小截为零。如果文件不存在则尝试创建之。 >> 或 a 写入方式打开,将文件指针指向文件末尾。 如果文件...
【简答题】close函数用于关闭一个已打开的文件。这个函数的参数fd为 ,一般来自前面的open函数的返回值。
【判断题】在Linux系统中将管道视为一种文件，可以使用操作文件的函数接口操作管道，如使用open()函数打开管道，使用close()函数关闭管道，使用lseek()函数更改文件读写位置等。
A.
正确
B.
错误
【简答题】The other day my aunt paid me a visit. She was overjoyed. “I got the highest mark in the mid-term examination!” She said. Don’t be surprised! My aunt is indeed a student, exactly, a college student at...
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