A:surprised
B:grow
C:angry
D:excited
在下列对选举权和被选举权的认识中,正确的是( )
如图为大气垂直分层示意图,据图回答下题.
Bob often _____ his homework after dinner.
右图为a、b、和c构成了核苷酸m。下列叙述中错误的是