A: eout<<left<<setfill('*')<<357;
B: cout<<left<<setw(5)<<357;
C: eout<<left<<setw(5)<<"ABCDE";
D: eout<<left<<"ABCDE";
举一反三
- T-SQL语句printcast(len('abcde')asvarchar(5))+ltrim('abcdef')+left('abcde',2)+substring('abcdef',2,3)+replace('abcdef','bc','hh')的输出结果是()。
- 设\( A \)为\( n \) 阶方阵, \( B \)是\( A \)经过若干次初等变换后得到的矩阵,则( ) A: \( \left| A \right| = \left| B \right| \) B: \( \left| A \right| \ne \left| B \right| \) C: 若\( \left| A \right| = 0 \) ,则必有 \( \left| B \right| = 0 \) D: 若\( \left| A \right| > 0 \),则一定有\( \left| B \right| > 0 \)
- 表达式Left("abcde",3)+Right("abcde",2)的值是() A: abc B: de C: abcde D: 出错
- 求函数$y = \arcsin (x - 5)$的定义域( )。 A: $\left[ { - 1,1} \right]$ B: $\left[ {4,6} \right]$ C: $\left[ {-4,6} \right]$ D: $\left[{0,1} \right]$
- 设\( A \) 为 \( n \)阶方阵,则 \( \left| {5A} \right| = 5\left| A \right| \).
内容
- 0
已知一程序运行后执行的第一个输出操作是______。 cout<<setw(10)<<setfill("*")<<1234; 则此操作的输出结果是 A: 1234 B: ******1234 C: **********1234 D: 1234******
- 1
The museum is __________. A: in your left B: in the left C: on your left D: at the left
- 2
In "Left Behind", what is the order the author organized her passage? A: Things left behind→memories left behind→love left behind B: Memories left behind→things left behind→love left behind C: Love left behind→memories left behind→things left behind D: Love left behind→things left behind→memories left behind
- 3
设`\n`阶方阵`\A`经过初等变换后得方阵`\B`,则 ( ) A: \[\left| {\rm{A}} \right| = \left| {\rm{B}} \right|\] B: \[\left| A \right| \ne \left| B \right|\] C: \[\left| A \right|\left| B \right| \ge {\rm{0}}\] D: 若`\| A| = 0`,则`\| B| = 0`
- 4
若\({y_1}\left( x \right), {y_2}\left( x \right)\)都是\(y' + P\left( x \right)y = Q\left( x \right)\)的特解,且 \({y_1}\left( x \right), {y_2}\left( x \right)\) 线性无关,则通解可表为\(y\left( x \right) = {y_1}\left( x \right) + C\left[ { { y_1}\left( x \right) - {y_2}\left( x \right)} \right]\)。