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【简答题】
None was critical in itself, but the combination appeared to trigger a strange result.
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Obviously___ we do morning exercises every day ___ us good.
A.
that do
B.
if; do
C.
what; does
D.
that; does
【单选题】某线性时不变系统，当系统输入为f(t)时系统输出为y(t)，则系统输出为y'(t-1)+4y(t)时对应的输入是（ ）
A.
f'(t+1)+4f(t)
B.
f'(t-1)+4f(t)
C.
f'(t-1)-4f(t)
D.
f'(t-1)+4f'(t)
【单选题】若已定义:char c='E'; int a=9; float x=5; 则表达式c/x-a的值是( )。[已知'A'的ASCII码值为65]
A.
13.8
B.
5
C.
4.8
D.
4
【单选题】Obviously ( ) we do morning exercises every day( )us good.
A.
that; do
B.
if; do
C.
what; does
D.
that; dose
【简答题】某线性时不变系统,当输入是 时,输出是 (1).求系统函数H(z),画出H(z)的零极点图,并标出收敛域。 (2).求系统的单位脉冲响应h(n) (3).写出表征该系统的差分方程 (4).判断系统的因果性和稳定性
【简答题】中国第一条设计时速350公里有砟轨道高速铁路是 [填空(1)] 。A. 京张高铁
【简答题】若已定义: char c[5]={' a','b ','\0','c','\0'}; 则 printf ("%s", c); 的输出是 ____ 。A. 'a'
'b' B. ab C. abc D. "ab\0c"
【单选题】Obviously we are disappointed but the committee could do nothing less than ______ the rules.
A.
stick to
B.
sticks to
C.
sticked to
D.
sticking to
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