小强同学在探究串联电路电流规律的实验中,按下图连接好了电路,合上开关S后,发现两

题型:选择题

问题:

小强同学在探究串联电路电流规律的实验中,按下图连接好了电路,合上开关S后,发现两灯均不发光。为检测出电路故障,他将电压表接到灯L1两端来测量电压,发现电压表有明显示数,而电流表示数几乎为零,则电路故障可能是(  )

A.灯L1短路  

B.灯L2断路  

C.电流表烧坏了

D.灯L1断路

考点:并联电路的电流规律串联电路的电流规律
题型:选择题

小题1:. There is an __________(气氛)of peace and calm in the country , quite different from that of a

big city.

小题2: Two people were arrested at a Paris airport for bringing animals into Europe from South

America __________(非法地).

小题3:English poetry can’t be __________(欣赏)unless you understand its rhythm(韵律).

小题4:Sang Lan has won the __________(同情)and admiration of people across the world with her

good attitude and beautiful smile.

小题5:The __________(宣告)made by the government aroused a storm of criticism and anxious

residents voiced concern over their uncertain future.

小题6:As is known to all, taking exercise regularly is of great b__________ to people’s health.

小题7: She told me not to be i__________ in this kind of matter because it’s none of my business.

小题8: Zhao Benshan is a born c__________. People can’t help laughing when he performs his comic

sketch at the Spring Festival Gala(春晚).

小题9: I have been q__________ up in lines for more than an hour in order to get a ticket for Jay Zhou’s concert.

小题10: Most of the exhibition halls were c__________ with people because it was the last day of the 2010 Shanghai Expo.

题型:选择题

(8分)下列有机化合物中,有多个官能团:

A.

B.

C.

D.E.⑴可以看作醇类的是(填入编号,下同):______          _______;

⑵可以看作酚类的是___           _____;

⑶可以看作羧酸类的是__________________;

⑷可以看作酯类的是_________       ___。

题型:选择题

台风

题型:选择题

生产者市场的购买类型包括()类型。

A、新购

B、直接重购

C、集中购买

D、修正购买

E、理智性购买

题型:选择题

在边坡设计中应用较广的等效内摩擦角φd是考虑了内聚力的假想摩擦角,关于等效内摩擦角下述说法中不正确的是( )。

A.φd与岩体的坚硬程度及完整程度有关
B.φd与破裂角无关
C.用φd设计边坡时坡高应有一定的限制
D.φd取值应考虑时间效应因素

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