【单选题】将1.500按0.2修约间隔修约,修约数为( )。
【简答题】wash ________ spend ________ make ________ study ________ have ________ sit _________ run ______ carry ________ lie ___________ stay _________
【单选题】在进行车轮的静强度校核时,最大轮压Pmax 是取以下载荷情况( )的最大值。
A.
仅考虑载荷情况 II (有风工作,不考虑动载效应)
C.
同时考虑载荷情况 I 、 II 、 III 中最不利状态和位置(考虑动载效应)
D.
同时考虑载荷情况 II 、 III 中最不利状态和位置(考虑动载效应)
【简答题】修约13.465,修约间隔为1,正确的做法是13.465→13.46→13.5→14。( )
【简答题】指定修约间隔为1,表示需要将数值修约到( )。
【判断题】修约间隔为0.1,3.051的修约值是3.1;修约间隔为0.02和0.2,0.53的修约值是0.52和0.6。()
【简答题】将数1.500按0.2修约间隔进行修约,其修约数为( )。
【单选题】Dogs can earn not only to sit, lie down but also___
A.
to obey all orders given by human beings.
B.
to do anything as children.
C.
to guide his blind master to cross streets.
D.
do anything they haven't been trained.