下列命题中的假命题是( )
A:∃x∈R,lgx=0
B:∃x∈R,tanx=1
C:∀x∈R,x3>0
D:∀x∈R,2x>0
一物体做匀加速直线运动,初速度为0.5m/s,第7s内的位移比第6s内的位移多4m,求:
—Are you charging me________lying?
—But your actions aren't consistent________your words.
唐朝时,科举制度得到很大发展,其基本特征是( )
This pair of jeans looks nice __________ Sandy because she looks very nice __________ blue.