BIG SALE AT MURRAY’S!

Come to Murray’s big sale on clothes，things for your room and things for school. We have jackets for boys for thirty－five dollars，sweaters for girls for fifteen dollars，and bags，earrings，and pants for five dollars!

See our great dressers，beds，and chairs. Get a new bookcase for all your school books and notepaper. At Murray’s big sale，they’re only twenty dollars! And we have backpacks, pencils，pens and notebooks—everything for school! Come into Murray’s today!

小题1:Sweaters for girls are ________.

A. $35.00　 B. $15.00　 C.$5.00

小题2:Bags are ________.

A. $35.00              B. $15.00        C. $5.00

小题3:________ for boys are on sale for $35.00.

A. Jackets      B. Sweaters  C. Belts

小题4:Murray’s doesn’t have ________ on sale.

A. dressers     B. tables  C. chairs

小题5:________ are $20.00.

A. Bookcases  B. Books   C. Papers

长期使用可乐定突然停药出现血压突然升高与下列哪种机制有关( )

A．突触后膜α₁，受体数目增多 B．突触后膜α₁受体敏感性增加
C．中枢发放的交感冲动增加
D．突触前膜α₂受体脱敏，负反馈减弱
E．以上都不是