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搜题
判断题】
周期信号的谐波分量是依一定规律集中在一些离散的频率上;非周期信号则是依一定密度分布在0到∞的连续频带内。
A.
正确
B.
错误
参考答案:
B
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举一反三
【简答题】运行下列程序的输出结果是____。 #include using namespace std; int main(void) { int i=5; do{ i++; cout< }while(i<3); cout< return 0; }
【判断题】认知策略与元认知策略是没有任何关系的。【 】
A.
正确
B.
错误
【多选题】下列表述符合咨询师健康的自我概念的是()
A.
自我概念可以改变
B.
认识自己也有方法
C.
喜欢和接纳自己
D.
自我接纳和成长是一生的课题
【单选题】蛋白质等电点状态的特点是( )
A.
带电荷,不显电性
B.
带正电荷,显正电
C.
带负电荷,显负电
D.
不带电荷,不显电性
E.
以上都不对
【单选题】When the writer saw the young girl walking past on the other side of the fence for the first time, he wanted to look away because he .
A.
was ashamed of his own appearance
B.
was a shy boy in front of strangers
C.
could not take his eyes from hers
D.
would not have someone see what he was doing there
【单选题】(Single choice) The output of an OR gate is LOW when
A.
any input is HIGH
B.
all inputs are HIGH
C.
no inputs are HIGH
D.
Both (a) and (c)
【单选题】73/78防污公约规定______I、一切塑料制品均不得入海II、船舶生活垃圾和食品废物未经粉碎时必须在距最近陆地12海里之外投弃III、当船舶长时间停港须排放舱底污水时,应控制含油量小于15ppm即可排放IV、油船排放货油舱油性混合物时距最近陆地应为12海里以上
A.
Ⅰ+Ⅱ
B.
Ⅰ+Ⅱ+Ⅲ
C.
Ⅰ+Ⅱ+Ⅳ
D.
Ⅰ+Ⅱ+Ⅲ+Ⅳ
【简答题】机器一般由[填空(1)] 、[填空(2)] 、[填空(3)] 和[填空(4)] 组成。
【简答题】After having learned the life as well as literary creating experience of Mark Twain, do you think the life experences of wirters would have direct or great imapct on life literarty writing ? If the an...
【简答题】算法的基本结构有顺序结构、____________和_____________。