下列图示的化学实验基本操作中,正确的是( )
A.
检验气密性
B.
称量固体
C.
加热液体
D.
倾倒液体
答案:A
Mrs Smith lives in our building. She is really a good because she is always ready to help people around her.
A.visitor
B.waiter
C.neighbour
D.artist
中国近代化的开端是( )
A.鸦片战争
B.洋务运动
C.戊戌变法
D.辛亥革命