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【单选题】
单选题03-28
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D
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【简答题】钻孔灌注桩施工中常用的清孔方法是:( )、( )、( )。
【简答题】Picture the scene: the battery on your mobile phone has run out. You can't make any calls for help and no one can contact you. You are all alone - well, not quite. Just reach into your pocket and take...
【单选题】案例“一个数字年份的到来”属于下列哪类标志?
A.
文字标志
B.
数字标志
C.
图文结合
D.
抽象图形
【多选题】一个面向订单生产的公司,打算把它的未完成订单量从4个月减少到2个月。如果全年需求1200件产品,那么,如下哪些关于今年生产规划量的数字是不正确的?()
A.
100
B.
120
C.
140
D.
160
【单选题】二次型的矩阵是
A.
对称阵
B.
反对称阵
C.
正交阵
D.
长方形阵
【单选题】Jack was a lazy boy. He was often caught ______ in class.
A.
sleeping
B.
slept
C.
to sleep
D.
sleep
【简答题】A.Can receive the calls but always cut off halfway. B.Can make calls but the signal is not clear. C.Can not receive or make calls since it makes a busy signal. D.Can receive but not make any calls.
【判断题】经过非退化线性替换,新二次型的矩阵和原二次型的矩阵是合同的。
A.
正确
B.
错误
【单选题】Jack was caught in a car accident, _____ he was late for the meeting.
A.
so as
B.
so that
C.
in order that
D.
in order
【单选题】实现对点火提前角精确控制点火系统的是:A
A.
传统点火系
B.
电子点火系
C.
计算机控制点火系
D.
磁电动机点火系
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