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【单选题】
信号按时间函数的确定性划分,可分为A.
周期信号和非周期信号
B.
确定信号与随机信号
C.
能量信号与功率信号
D.
连续信号与离散信号
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反馈参考答案：
举一反三
【单选题】The drag link connects the pitman arm to the ______ .
A.
steering shaft
B.
steering gear
C.
steering arm
D.
steering wheel
【单选题】一位吸尘器推销员对顾客说:“请好好想一想,使用吸尘器,你可以从繁杂的家务劳动中解脱出来,这样,你就可以有更多时间和精力关心你孩子的学习和进步,辅导她的作业,带她外出散步,和家人一同享受生活的乐趣。”请问该推销是在调动顾客哪种心理活动?( )
A.
记忆
B.
注意
C.
知觉
D.
感觉
E.
想象
【单选题】Only social scientists are political scientists. Many political scientists are persons who favor campaign finance reform. Accordingly, many persons who favor campaign finance reform are social scienti...
A.
Valid
B.
Invalid
C.
I don't know
【单选题】______ connects the drag link to the top portion of the driver’s side steering knuckle and spindle.
A.
The pitman arm
B.
The steering arm
C.
The tie rod
D.
The steering shaft
【单选题】The drag link is connected at each end by______ .
A.
stud
B.
worm
C.
ball joints
D.
thread
【简答题】Sometimes called a steering lever, this forged steel component connects the drag link to the top portion of the driver’s side steering knuckle and spindle.
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