平面平行力系处于平衡,应力独立平衡方程的个数为( )个。
A.4 B.3C.2 D.1
参考答案:C
根据下列句子所给汉语意思写出空缺处单词,或根据所给词写出正确形式。
小题1:We're in the building _________ (在…对面) the government offices.
小题2:________(政治上) and economically this is an extremely difficult question.
小题3:Though ten years old, this book is highly ___________ (推荐).
小题4:Delivery times are arranged at your __________(方便).
小题5:I have no doubt that the man is guilty and that he deserves __________(惩罚).
负责领导指令的具体下达,各业务部门和专业工作的统一协调、调度和具体指挥,属于( )。
A.公安领导工作
B.公安秘书工作
C.公安指挥工作
D.公安政治工作