麻疹的主要传播途径是()
A.飞沫传播
B.血液传播
C.虫媒传播
D.消化道传播
E.接触传播
参考答案:A
It’s time to say goodbye to my school . I’ll always remember the people ____ have helped me .
A.who
B.what
C.where
D.which
腭骨锥突上附着的肌肉是()
A.翼内肌浅头
B.翼内肌深头
C.翼外肌上头
D.翼外肌下头
E.翼内肌浅头和深头