He never ____learning English .That was why he was successful at last.
A:gave in
B:gave out
C:gave up
D:gave away
“人是一部机器,所以人对自然界的反映是一种照相式活动。”持这一观点的哲学派别是( )
-- What subjects do you like? -
下图中能表明电动机原理的实验是( )