如图所示,有一带正电荷的验电器,当一金属球A靠近验电器的小球B时,验电器金属箔张

题型:选择题

问题:

如图所示,有一带正电荷的验电器,当一金属球A靠近验电器的小球B时,验电器金属箔张角减小,则金属球A(   )

A.可能不带电

B.可能带负电

C.可能带正电

D.一定带负电

考点:电荷守恒定律电荷、元电荷
题型:选择题

阅读理解。根据短文内容,判断句子正 (T)误 (F)。

     Most people like movies. The boys usually like action movies. They think they are very exciting. The

  girls usually like comedies. They think they are very funny. Some old people like Beijing Opera. They

  think they are very interesting. Some young people like thrillers. They think they are very exciting.

     Well, I'm Mona.  I'm a middle school student.  I like movies.  My father Mr Green likes movies, too. 

 He likes documentaries, and my mother Mrs Green likes comedies.  And I like action movies.We often

 go to see movies on weekends.       

(      ) 1. The girls usually like action movies.

(      ) 2. Some young people like thrillers.

(      ) 3. Mr Green likes documentaries.

(      ) 4. The boys usually like thrillers.

(      ) 5. Mona doesn't like action movies.

题型:选择题

气滞作痛的特点是()

A.游走性疼痛,无定处

B.攻痛无常,时感抽擎

C.皮色不红,不热

D.形势胀急,痛无止时

E.痛而硬,皮色不泽

题型:选择题

用于观察血液流动实验的小鱼必须是[ ]

A.尾鳍色素少、死的

B.尾鳍色素少、活的

C.尾鳍色素多、活的

D.尾鳍色素多、死的

题型:选择题

临床复查白细胞计数,评价其准确性的考核方法是()

A.变异百分率评价法

B.两差比值评价法

C.双份计数标准差评价法

D.重复计数标准差评价法

E.常规考核标准

题型:选择题

有以下程序: main() { int a[]={1,2,3,4,5,6,7,8,9,0},*p; for(p=a;p<a+10,p++)printf("%d,",*p); } 程序运行后的输出结果是【 】。

A.1,234,5,6,7,8,9,0,

B.2,3,4,5,6,7,8,9,10,1,

C.01,23,4,5,6,7,8,9,

D.1,1,1,1,1,1,1,1,1,1,

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