【单选题】【消耗次数：1】
Which of the following is the time when students work in groups?
①
When all the students are under the control of the teacher
②
When students work in pairs on an exercise or a task
③
When students work in small group
④
When students are expected to work on their own at their own speed.
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相关题目
【单选题】
Which of the following is the time when students work in a pair?
①
When all the students are under the control of the teacher
②
When students work in pairs on an exercise or a task
③
When students work in small groups
④
When students are expected to work on their own at their own speed.
【单选题】
Which of the following is the time when students work as a whole class?
①
When all the students are under the control of the teacher
②
When students work in pairs on an exercise or a task
③
When students work in small groups
④
When students are expected to work on their own at their own speed.
【单选题】
Which of the following is the time when students study by themselves?
①
When all the students are under the control of the teacher
②
When students work in pairs on an exercise or a task
③
When students work in small groups
④
When students are expected to work on their own at their own speed.
【单选题】
What role does a teacher play in the following activity? When students are doing a group-work task, the teacher joins one or two groups for a short period of time.
①
Controller
②
Assessor
③
participant
④
Resource-provider.
【单选题】
When is appropriate for the teacher to give classroom instructions to students?
①
Give directions to tasks or activities, checking comprehension, giving feedback
②
Providing explanations to a concept or language structure, drawing attention
③
Setting requirements, checking comprehension, assigning homework
④
All of the above.
【单选题】
What role does a teacher play in the following activity? The teacher gives students 2 minutes to skim a text, and when time is up, he asks students to stop and answer some questions.
①
Controller
②
Assessor
③
Organizer
④
Prompter
【单选题】
A kind teacher always takes a very _______ attitude when correcting students’ mistakes.
①
negative
②
partial
③
potential
④
positive
【单选题】
The students can ’t finish the work ______ the teacher’s help.
①
A. with
②
B.for
③
C.without
④
D.on
【单选题】
What role does a teacher play in the following activity? When the students have in groups decided where to go for a spring outing, the teacher asks each group to tell the others why they have made such a choice.
①
Controller
②
Assessor
③
Organizer
④
Prompter.
【判断题】
There existed a certain doubt among the students as to the necessity of the work.
①
正确
②
错误
随机题目
【单选题】
拔牙窝的Salama分类中属于拔牙窝伴有骨缺损的是（ ）
①
GBR同期或者延期种植
②
即刻种植和延期种植
③
不需要做GBR
④
预后效果不理想
⑤
正常植入植体会产生骨缺损
【单选题】
下列说法不恰当的是（ ）
①
即刻种植的早期失败常发生于稳定性的低谷阶段
②
适应症的选择只考虑拔牙窝的形态即可
③
反复的接换基台会导致种植体周围的软硬组织的吸收
④
种植体直径应该大于牙槽嵴顶的一半，才能有效的分散应力
⑤
即刻负重一定要慎重
【单选题】
关于美学区即刻种植成功的要素，错误的说法是（ ）
①
一定的力学刺激有利于种植体的骨性结合
②
粗直径比细直径的种植体可以获得更好的美学效果
③
不反复接换基台
④
唇颊侧应该保证足够的骨量
⑤
使用长种植体
【单选题】
关于影响功能区即刻种植的因素，下列说法不恰当的是( )
①
牙槽窝有无明显的感染和是否微创拔牙
②
应该尽量将种植体植入到拔牙窝原来的位置
③
可以在种植体和骨壁的间隙里填入骨替代材料以及颊侧骨壁的厚度
④
完整的牙槽窝骨壁可以增加手术成功的把握性
⑤
有严重骨缺损的患者还是要进行GBR
【单选题】
功能区的即刻种植为了达到良好的初期稳定性，尽量使用长一点的种植体，最好达到（ ）
①
20N.cm
②
25N.cm
③
30N.cm
④
35N.cm
⑤
50N.cm