She likes to play _____her dog.[ ] A. fo

根据短文内容判断正（T）误（F）。

Jim Allan Green

　　Most(大多数)English people have three names:a first name,a middle name

and the family name. Their family name comes last. For example(例如), my full

name(全名)is Jim Allan Green. Green is my family name. My parents gave(给)

me both(两者都)of my other names.

John Henry Brown

　　People don't use(用)their middle names very much. So John Henry Brown

is usually(通常)called(叫做)John Brown. People never(从不)use Mr, Mrs or

Miss before(在……以前)their first names. So you can say John Brown, or Mr

Brown, but you should(应该)never say Mr John. They use Mr, Mrs or Miss with

the family name but never with their first name or middle name.

( )1. Jim Allan Green is Jim's full name.

(     )2. Most English people have two names.

(     )3. Allan is Jim Allan Green's family name.

(     )4. We can call John Henry Brown Mr Brown or John Brown.

(     )5. We can use Mr, Mrs or Miss with the family name.

发病率适用于（）

A.慢性病

B.疾病的长期流行

C.易于确切指出发病时间的急性病

D.某病的隐性感染

E.以上都不对

如图所示，绷紧的传送带与水平面的夹角θ＝30°，传送带在电动机的带动下，始终保持v₀＝2 m/s的速率运行．现把一质量为m＝1kg的工件(可看为质点)轻轻放在传送带的底端，经时间t＝1.9 s，工件被传送到h＝1.5 m的高处，并取得了与传送带相同的速度，取g＝10 m/s².求：

(1)工件与传送带之间的滑动摩擦力f

(2)工件与传送带之间的相对位移Δs

(2011·苏州模拟)如图所示,在双缝干涉实验中,已知SS₁=SS₂,且S₁、S₂到光屏上P点的路程差Δs=1.5×10^-6 m.

(1)当S为λ="0.6" μm的单色光源时,在P点处将形成_____条纹.

(2)当S为λ="0.5" μm的单色光源时,在P点处将形成 _____ 条纹.(均选填“明”或“暗”)

曲阜的孔府菜是我国最著名最典型的民间菜。 ( )