A. 门齿、臼齿、智齿
B. 门齿、犬齿、臼齿
C. 犬齿、臼齿、智齿
D. 门齿、犬齿、智齿
[单选题]兽类的牙齿已高度分化为（）。A .端生齿、侧生齿和槽生齿B .同形齿和异形齿C .皮齿、伪齿、犁齿和咽喉齿D .门齿、犬齿和臼齿
[单选题]24． Grace ____________．A． does badly in her studiesB． has a wonderful nameC．is short and quietD．is good at playing the piano
[单选题]24． It is ________ in the shadow of a tree in summer，so many people like to stay there．A． hotB． warmC． coolD． cold
[单选题]24． Kang Kang is in ______A． her classB． Class 3C． Class 4D． Class 1
[单选题]24． Which of the following is TRUE?A． When he talks or sings, Jay Chou can both speak clearly．B． When he sings, Jay Chou can-t speak clearly． When he talks, he can't, either．C． When he talks, Jay Chou can-t speak clearly． But when he sings, he can．D
[单选题]24． The passage tells us __________．A． the sun is not the biggest starB． the sun is bigger than any other starC． only the sun can shineD． the sun is one of the farthest stars from us