【简答题】CH50是测定_________,APH50是反映_________。
【单选题】以下关于牙本质粘接的难点,叙述正确的是
E.
牙本质的矿化程度较釉质低,有机物和水含量较釉质低
【判断题】get attention from sb
【单选题】Have you ever stayed up late.9 If so, you know that not getting enough sleep can leave you tired and grumpy (脾气暴躁的). Not sleeping enough can also make it harder to think clearly the next day. Sleep ex...
【单选题】Celebrities inspire envy because
A.
they get attention from the media rather than the heroes.
B.
common people believe that their position can be obtained.
C.
they should not be respected for their achievements.
D.
they are just TV stars like Telly or Suzanne.
【简答题】get sb's attention and pr them from concentrating on sth.