【单选题】It is still necessary for human pilots on the ground to control such a plane because ______.
A.
such a plane is no more than an unmanned aerial vehicle
B.
the virtual pilot cannot handle an emergency
C.
human pilots can make more money for this
D.
there is a datalink connection to the controls
【单选题】按固端弯矩相等的原则将等效荷载施加在框架上用分层法或弯矩分配法求得框架梁端支座弯矩后,梁跨中弯矩求解时的荷载取值为
【单选题】按分层法或弯矩分配法求得框架梁端支座弯矩后,梁跨中弯矩求解时的荷载取值为
【单选题】如图力矩分配法求解时,各个点的固端弯矩为( )
【单选题】Stop ______, please. Let's go on with our lesson. [ ]
【单选题】The writer is_________ now.
【单选题】新民主主义革命与社会主义革命性质不同。新民主主义革命属于( )的范畴。
【多选题】力矩分配法求解时,结点只放松与传递一次,立即得到杆端弯矩精确解的是( )