车轮轮缘磨损超过原厚度的（）％时，车轮应报废A、20B、30C、40D、50

合成考评法的特点包括( )。

A．它所考评的是一个团队而不是某一个员工

B．考评的侧重点具有双重性

C．表格现实简单便于填写说明

D．考评量表采用了三个评定等级

E．考评团队员工个人潜能

[1] Stress for a teenager is as real a problem as stress for an adult. Therefore, it’s important to understand the causes of stress in teenagers.

[2] When parents change their jobs or if the family decides to move to a different place, the child has to change schools, find new friends, adapt to the new social circle and fit into new groups. It is always difficult for children to adapt to such changes, which can be a serious cause of stress in their life.

[3] Academic difficulties, such as inability to understand a certain subject can cause stress. Not every child has the ability to understand every subject. Some kids need extra help besides school work to grasp a few concepts. Poor academic performance is often laughed at and is looked down upon by both teachers and peers. In such cases, it can make the child feel isolated, neglected and hurt. All of this, put together, can add to stress, which many times worsen grades.

[4] Extra curricular activities (课外活动) such as playing a sport, or attending art classes can weigh heavily on your child’s mind. Balancing school and extra curricular activities does seem like a burden when you have to be outstanding at both. When the pressures from both the ends get unmanageable, teenagers tend to get tired and annoyed. Tiredness sets in, leading to stress related issues such as lack of concentration in school.

[5] These are the common causes of stress in teenagers, which can be noticed through signs such as poor memory, anxiety, negative and pessimistic attitude. If the signs of teenage stress go unrecognized for a long time, it can make the child emotionally out of balance. And next step, if this happens, it is necessary for parents to know _________________.

小题1:What’s the main idea of the passage?

___________________________________________________________________________

小题2:Why poor academic performance causes stress for children? ( no more than 20 words)

___________________________________________________________________________

小题3: How can parents notice that their teenagers are under stress? (no more than 15 words)

___________________________________________________________________________

小题4: What common causes of stress in teenagers were introduced by the author? (no more than 3 words for each)

①____________________   ②____________________    ③_____________________

小题5: Fill in the blank in Paragraph 5 with proper words.（no more than 8 words）

推扫式线阵列传感器的成像特点是（）。

A.每一条航线对应着一组外方位元素

B.每一条扫描行对应着一组外方位元素

C.每一个像元对应着一组外方位元素

D.每一幅影像对应着一组外方位元素

诱导运动是一种视错觉，即观察者知觉到某个物体在运动，而实际上该物体没有发生空间移动，只是由于其他物体的运动使得被观察物体看起来好像在运动。 根据以上定义，下列属于诱导运动的是：

A.在没有月光的夜晚仰望天空，觉得星星好像在动 

B.电影院里播放的精彩电影 

C.月亮在云彩后面穿行 

D.注视飞速开过的火车之后，会觉得附近的树木向相反方向运动

血虚头痛的主症特点（）

A.头痛昏蒙

B.头痛隐隐

C.头痛且胀

D.头痛且空