螺纹隔爆参数要求，最少啮合扣数为5扣。

暑假即将来到，对于暑假你有什么打算，请写一写。

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阅读短文，判断正(√)误(×)。

      Lily is a student of No. 16 Middle School. She's good at English. Her teacher likes her very much. She

often lets her show the visitors around. Lily likes doing that. She often introduces the class building, the library,

the computer room and the music club to them. She likes her school a lot.

( ) 1. Lily is a teacher.

( ) 2. Lily enjoys speaking English.

( ) 3. Lily doesn't like show the visitors around.

( ) 4. She often introduces the dance room.

患者：男性，55岁，近一年来经常头痛，影响工作，一个月来流鼻水。

最应做的检查是（）

A.鼻腔分泌物检查

B.鼻窦X线检查

C.垂体CT检查

D.颈椎X线检查

E.脑血管造影

在法庭审理过程中，被告人屠某、沈某和证人朱某提出在侦查期间遭到非法取证，要求确认其审前供述或证言不具备证据能力。下列哪些情形下应当根据法律规定排除上述证据？（）

A.对沈某进行引诱，说"讲了就可以回去"

B.将屠某"大"字形吊铐在窗户的铁栏杆上，双脚离地

C.对沈某进行威胁，说"不讲就把你老婆一起抓进来"

D.对朱某进行威胁，说"不配合我们的工作就把你关进来"

简述我国人民民主专政的阶级基础