Don't make him all the time. Tell him a rest.
A:to work; to have
B:work; have
C:work; to have
乘车时闭眼也能准确地辨别汽车行驶速度的变化和上、下坡,接受刺激的感受器位于( )
All the Chinese people are living a life.
用数学归纳法证明:1+122+132+⋯+12n-12<2-12n-1n≥2(n∈N*)时第一步需要证明( )
①中共中央副主席、***刘少奇②中共中央***邓小平③林彪反革命集团④江青反革命集团