在空间中,①若四点不共面,则这四点中任何三点都不共线;
②若两条直线没有共点,则这两条直线是异面直线;
以上两个命题中,逆命题为真命题的是( )。(把符合要求的命题序号都填上)
②
— No one can answer the question _______ we can complete the task in time, do you know?
— Yes, and this is because we don’t know the way _______ the scientist used last time.
A.whether; which
B.if; which
C.whether; in which
D.if; in which
诺西FlexiEDGEBTS的下列技术和增加基站覆盖无关的是()。
A、SEG
B、DP
C、IDD
D、4UD