__________visitors is an important part of the receptionist's daily _______. A: Receiving , routine B: Receive, routine C: Receiving, business

The most successful employees have highly effective work habits and________. A: routine B: a routine C: routines

I set _ a routine that was really my own — a routine that met my needs. A: on B: up C: at D: off

中国大学MOOC: Please tell us ­­­­­­­­­­­­­­­________________ thegoods will be transshipped.

下面程序段运行结果是____。 A: B: &˽&˽&* C: D: ˽&˽&˽&˽* E: F: &&&* G: H: ＆˽*˽˽

以下运算符优先级排列正确的是（ ） A: *= &&！= % B: *= % &&！= C: %！= && *= D: &&！= % *=

若图中直线，，的斜率分别为，，，则(　　) A: $amp;$amp; B: $amp;$amp; C: $amp;$amp; D: $amp;$amp;

\(A\)同上题,将其对角化\(A=S\Lambda S^{-1}\)的方阵\(S\)可以是 A: \(\begin{pmatrix} 1 & 1 & 1 & 1 \\ 1 & 1 & 1 & 0 \\ 1 & 1 & 0 & 0 \\ 1 & 0 & 0 & 0 \end{pmatrix}\) B: \(\begin{pmatrix} 1 & 0 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 0 & 1 \end{pmatrix}\) C: \(\begin{pmatrix} 1 & 0 & 0 & -1 \\ 0 & 1 & -1 & 0 \\ 0 & 1 & 1 & 0 \\ 1 & 0 & 0 & 1 \end{pmatrix}\)

下列运算符中，优先级从高到低依次为（ ） A: && ! || B: || && ! C: && || ! D: ! && ||

下列运算符按照由高到低的优先级排列的是_________? A: &&,||,^,*+ B: *,+,&&,||^ C: *,+,^,&&,|| D: *,+,^,||&& E: ^,||,&&,*+