在方丝弓矫治器应用过程中,排齐和整平牙列时最常用的方丝为() A.镍钛圆丝 B.0.

题型:单项选择题 A1/A2型题

问题:

在方丝弓矫治器应用过程中,排齐和整平牙列时最常用的方丝为()

A.镍钛圆丝

B.0.018×0.025英寸的不锈钢丝

C.0.018英寸的不锈钢圆丝

D.镍钛方丝

E.0.016英寸的不锈钢圆丝

考点:口腔正畸主治医师口腔正畸学口腔正畸学题库
题型:单项选择题 A1/A2型题

烧伤伤员口渴时,只能喝白开水。

题型:单项选择题 A1/A2型题

阅读理解。

Volunteers Needed to Care for Disabled Cluldren Workplace

    Disabled Children's Care Center, Los Angeles, Califomia, USA.

Living place:

    It is our policy that all our volunteers stay with a trained American host family to learn more about life

here. On the first day, we meet them at the airport and take them to a hotel.

Volunteers Must:

◆have graduated from a normal(师范) university;

◆come from Asia;

◆be twenty-four or older;

◆speak English well.

Length of Working Time:

    No less than four weeks and no more than one year.

Activities:

◆Playing with the kids during school hours;

+Teaching in the classrooms: English and math;

◆Helping the kids organize their books and school-work;

◆Organizing the children's homes.

Compensation(报酬):

    Any volunteers will get afree ticket to Disneyland after working for 4 weeks.  For more information,

please visit our website at www..helptouchamerica. com or send us an e-mail at touchamerican @email.

com.

1.  Working in the Disabled Children's Care Center is to  ___  the disabled children.

2. The length of working time for the volunteers is           

3. If you are a 24-year-old Chinese boy who graduated from Beijing Normal University and speak

    excellent English, you are suitable for_____a volunteer.

4. One of the volunteers' activities is helping the kids ___   their books and school-work.

5. To learn more about the center, you can_____its website or send it an e-mail.

题型:单项选择题 A1/A2型题

在倾角为30°的斜面顶点以10m/s的速度水平抛出一个质量为0.1kg的小球,则小球落到斜面上瞬间重力的瞬时功率为______,过程中重力的平均功率为______.

题型:单项选择题 A1/A2型题

结构化程序设计主要强调的是______。

A.程序的规模

B.程序的易读性

C.程序的执行效率

D.程疗的可移植性

题型:单项选择题 A1/A2型题

读等高线地形图(已知a<b<c<d),回答下列小题。

下列关于①②数值的叙述,正确的是()

A.①②的数值不可能相等

B.①的数值一定大于②

C.①②的数值可能都等于b或c

D.①②的数值可能都等于a或d

更多题库