【单选题】Before we administer first aid to a victim, it is very important for us
A.
to refer to all kinds of handbooks on first aid.
B.
to make sure what to do and what not to do.
C.
to remove the ring or bracelet he may be wearing.
D.
to take him to a hospital at once.
【判断题】华为的“床垫”文化是创业公司常见的情景。
【简答题】在 V 带传动设计中,为什么小带轮的包角不能过小,并给出几种增大小带轮包角的措施。
【单选题】关于高频小信号放大器,下列说法适合的是( )。
【简答题】DNA双螺旋的两股链的顺序是______关系。
【简答题】It is important to spread k______.
【单选题】Everyone should remember it is very important to______the balance of nature.