若方程ax2+bx+c=0的一个根为﹣1,则a﹣b+c=();若一根为0,则c=

题型:填空题

问题:

若方程ax2+bx+c=0的一个根为﹣1,则a﹣b+c=(    );若一根为0,则c=(    ).

考点:一元二次方程的解法
题型:填空题


以下提供若干个案例,每个案例下设若干道考题。请根据各考题题干所提供的信息,在每题下面的A、B、C、D、E五个备选答案中选择一个最佳答案。

女性,50岁,发现左 * * 肿块1周。查体:肿块位于左 * * 外侧,5cm×4cm大小,质硬,边界不清,腋窝可扪及一肿大淋巴结,活动,怀疑为乳腺癌。

为明确诊断,进一步的检查是

A.细针穿刺细胞学检查

B.钼钯照相

C.B超检查

D.红外线扫描

E.血清CEA检查

题型:填空题

分包合同的分包人能否将其承包的分包工程再分包( )。

A.可将其承包的分包工程全部分包

B.可将其承包的分包工程部分分包

C.不得将其承包的分包工程再分包

D.无硬性规定

题型:填空题

通常战略风险识别不可以从()两个层面人手。

A.战略

B.宏观

C.微观

D.全局

E.战术

题型:填空题

Are you a man or a mouse When people ask this question they want to know (1) you think you are a (2) person or a coward. But you will never really know the answer to this question (3) you are tested in real life. Some people (4) they are brave but when they come face to face with real (5) , they act like cowards. Others think of themselves as cowards, but when they meet danger, they act like (6)

Lenny had always thought of himself as a (7) person. He got worried before examinations. He worried about his job and health. All he wanted in life was to be safe and healthy. (8) , on January 15th, 2002, a plane crashed into the Potomac River in Washington. Lenny went to the river to see what was happening. He saw a woman in the (9) water. Lenny did not feel afraid. He kept very (10) and did a very dangerous thing. He jumped into the Potomac, (11) to the woman, and kept her head (12) the water. Seventy-eight people died that day. Thanks to Lenny, it was not (13) .

When you are in a very (14) situation and feel afraid, the body automatically produces a chemical in the blood. The chemical is called adrenalin. (15) adrenalin in the blood system, you actually feel per and per and are (16) to fight or run away. However, when you are absolutely terrified, the body can produce too much adrenalin. When this (17) , the muscles become very hard and you find you (18) move at all. You are then paralyzed with fear. This is (19) when we are very frightened, we sometimes say we’re "petrified". This word comes from the Greek word "petros", which means "stone". We are (20) frightened that we become stonelike.

16()

A.afraid 

B.unable 

C.ready 

D.anxious

题型:填空题

治冲任虚寒,瘀血阻滞之月经不调,首选的方剂是()

A.温经汤

B.生化汤

C.黄土汤

D.血府逐瘀汤

E.桃红四物汤

更多题库