冲压设备的安全装置按其结构分为机械、按钮、光电、；感应等类型。其中，( )全部属于

临床上全口义齿上颌腭侧基托易折裂，下述与基托折裂无关的是（）

A.双侧后牙排在牙槽嵴顶的外侧

B.腭侧基托过薄

C.患者咬过硬食物

D.基托组织面与口腔黏膜不贴合

E.唇、颊系带处，上颌硬区缓冲

在投标过程中，投标人采取的报价技巧主要是多方案报价和( )报价。

A．单一

B．保本

C．合伙

D．最低

根据《民事诉讼法》，属于广义民事诉讼当事人的有()。

A.第三人 

B.刑事附带民事案件自诉人 

C.辩护人 

D.原告与被告 

E.共同诉讼人

患者13岁，3天前上中切牙外伤，现咬物痛。查：左上中切牙牙冠完整。叩（+），电测无活力，1度松动。扪（-），龈无红肿。X片示根折线在根尖1/3处。处置应是（）

A.调牙合观察

B.盖髓治疗

C.活髓切断

D.根管治疗

E.患牙拔除

The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.

Is rs=rx-2 （）
(1) r is an odd number
(2) x=s+2

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.