利多卡因对哪种心律失常无效（） A.心室颤动 B.室性期前收缩 C.室上性心动过速

读短文，判断正(T) 误(F) 。

   Mike and David are good friends. They study in the same school. They always do their homework

together.On Sundays they usually go to the gym to play basketball. Mike likes reading books.David likes

to play ping-pong.Mike likes drawing,too. He usually draws dishes, apples and oranges, because he likes circles.They some-times help their mother to wash the dishes.They are good children.

( ) 1. Mike and David are in the same school.

(     ) 2. They always play basketball.

( ) 3. Mike likes to read books.

( ) 4. David likes to draw a picture.

(     ) 5. David likes circles.

( ) 6. They usually help their mother.

破伤风患者，张口受限，出现发热、呼吸困难，SpO₂85%～90%（）

A.经口气管插管

B.口咽通气管

C.纤维支气管镜引导鼻插管

D.气管切开

E.环甲膜穿刺

患儿，5周岁。两周前曾患上感，目前不规则发热，易疲倦，脸色略苍白。查体发现，心率增快，心尖部第一心音减弱，并可闻及早搏，心电检查：P-R间期延长，ST段下移，实验室检查：C反应蛋白增高。下列哪项检查可以帮助确诊

A．血沉

B．谷草转氨酶

C．抗透明质酸酶

D．心脏X线检查

E．肌酸磷酸激酶

在我国，对期货交易实施行业自律管理的机构是( )。

A．中国证监会
B．中国期货业协会
C．期货交易所
D．期货经纪公司

塑刚门窗的优点是（）

A.强度好、耐冲击

B.保温隔热

C.隔音好

D.耐腐蚀性强

E.气密性、水密性好