A:Don't push.
B:Don't run.
鲫鱼不断地用口吞水,由鳃孔排出水,其意义是( )
You can do a quick test to ____(证明,证实) this in any database by opening a view and then pressing the down arrow.
English is interesting, _____ I didn't like it at first.
①1s22s22p63s23p4②1s22s22p63s23p3③1s22s22p3④1s22s22p5
则下列有关比较中正确的是( )
读出下列游标卡尺和螺旋测微器的示数
游标卡尺的示数为____cm; 螺旋测微器的示数为____cm.