上端站防超越行程保护开关自上而下的排列顺序是（）。A.强迫缓速、极限、限位 B.极限

阅读理解。

     Some days before Mother’s Day,the teacher wanted to know how his students were going to show

their love to their mothers. Some of the students came from far away to study here. “Are you going home

to see your mother during the holiday?" the teacher asked one of them,

     The student answered. "I have no time to go home because I’m going to get ready for the exam. But

I’ll write a letter to my mother,"

     "Then which do you think is more important your mother or the exam?"

     "Of course the exam is more important。"answered the student. "My mother is always saying so.

判断正误（T or F）：

( )1.The student didn’t love his mother. So he wouldn’t go back home.   

( )2.The mother thought the exam was very important for her child.     

3.Then which do you think is more important your mother or the exam? (将句子翻译成汉语)

_______________________________________________

回答下列问题：

4. What did the teacher want to know?

_______________________________________________

5. Did the students have a holiday on Mother’s Day?

_______________________________________________

患者女，68岁，全牙列缺失，拟行全口义齿修复，全口义齿排牙完成后需要口内试戴，除要求有良好的咬合关系和平衡牙合外，对义齿基托蜡型也有严格要求

对基托磨光面的外形不要求（）

A.凹面固位形

B.牙龈外形

C.牙根突度

D.后堤形状

E.腭皱外形

慢性淋巴细胞白血病可见（）

A.血液中性粒细胞显著增高

B.血液单核细胞显著增高

C.血液异型淋巴细胞显著增高

D.血液淋巴细胞持续显著升高

E.血液嗜酸性粒细胞显著增高

具有清热解毒、清肺化痰功效的药物是（）

A.砒石

B.炉甘石

C.硫黄

D.硼砂

E.莲子

社会工作者小王针对社区青少年的需求，开展了一系列社区服务活动。在服务执行阶段，小王开展的工作应包括（）

A.了解青少年喜爱的文体活动类型

B.对开展的文体活动设置合理的时间表

C.及时开展青少年服务活动的成效评估

D.为表现突出的志愿者制作光荣榜对其进行表彰

E.详细记录活动的收入支出明细，做好资金管理