如图所示,倾斜木板上放一物体,使板的倾角θ缓慢增大,且物体始终保持静止,在此过程

题型:不定项选择

问题:

如图所示,倾斜木板上放一物体,使板的倾角θ缓慢增大,且物体始终保持静止,在此过程中物体所受的

[ ]

A.支持力变大

B.摩擦力变大

C.合外力不做功  

D.支持力不做功

考点:正功和负功的区别共点力的平衡
题型:不定项选择

下列哪种休克的微循环变化和内脏继发性损害比较严重

A.心源性休克
B.低血容量性休克
C.感染性休克
D.过敏性休克
E.神经源性休克

题型:不定项选择

函数f(x)=2x+x-7的零点所在的区间是(k,k+1),k∈Z,则k=______.

题型:不定项选择

()是引起和保持有意注意的条件和方法

A.加深对活动的目标、任务和理解

B.培养直接兴趣

C.培养间接兴趣

D.合理地组织活动

题型:不定项选择

第二节 语法填空(共10小题;每小题1.5分,满分15分)

阅读下面短文,根据上下文填入适当的词语,或使用括号中的词语的适当

形式填空,并将答案填写在答题卡上标号为31~40的相应位置。

Gandhi, an Indian national hero, was honored  (31)          the father of the Indian nation. He has been respected and beloved  (32)            the Indians.

He was born in India in 1869. Following the local custom, he got married     (33)            the age of 13. In 1888 he sailed to England, where he studied law for three years and became a lawyer. On his return to India, he was sent to South Africa to work on a law case.

In South Africa he  (34)             (surprise) found the problem of racial discrimination was serious. There he formed an organization and started a magazine to fight  (35)          equal rights.

Gandhi returned to India in 1915, when India was  (36)            (control) by the British. He led the Indians to fight for an end to the British rule and        (37)            (depend) for his country. In the political movement many Indians  (38)            (include) Gandhi were put in prison. However, the struggles never stopped. The British government had to give  (39)           and India won its independence in 1947.  (40)           (fortunate), Gandhi was shot by an Indian who opposed his views and died on January 30th, 1948.

题型:不定项选择

下述不符合Ⅳ型肾小管酸中毒的是()

A.尿pH值5.3

B.高氯性代谢性酸中毒

C.低钙血症及低钠血症

D.老年患者,有慢性肾功能不全,血肌酐值为421μmol/L

E.血钾5.9mmol/L

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