给10只中年大鼠注射内毒素（30mg/kg）后，测得每只大鼠的红细胞含量X（×10T

A公司根据市场信息，准备在B地投资建厂，委托工程咨询公司为其提供决策咨询服务，A公司提供的信息如下： 　　

(1)目前A公司的产能为710万件/年; 　　

(2)市场需求：预测未来市场需求总量为8000万件/年，且A公司产品在市场占有份额预计为10%; 　　

(3)B地建厂可提供的投资方案：方案1，采用自动化设备，年总固定成本为800万元，单位可变成本为10元/年;方案2，采用半自动化设备，年总固 定成本为600万元，单位可变成本为12元/年;方案3，采用非自动化设备，年总固定成本为400万元，单位可变成本为16元/年。产品的售价为22元 /件。营业税金及附加0.6元/件。 　　

(以上售价和成本均不含增值税) 　　

问题： (注：计算结果保留两位小数)

以A公司最优决策方案为基础，分别计算以产量和产品售价表示的盈亏平衡点，计算达到设计生产能力时间的年利润。

患者，女，51岁，有吸烟，饮酒史。早晨突然昏倒，不省人事，牙关紧闭，口噤不开，两手握固，躁扰不宁，面赤身热，口臭气粗，大小便闭，舌红，苔黄腻，脉弦滑而数，中医辨证为（）

A.中风（阴闭）

B.中风（阳闭）

C.中风（脱证）

D.厥证（痰热）

E.痫病

遥感技术对农作物和森林病虫害预报的工作原理是[ ]

A．进行灾害跟踪监测

B．建立灾害模型

C．准确测定受灾地点

D．根据遥感图像上植物色调的差异

The human body has hundreds of muscles. The three types are skeletal(骨骼的) muscles, smooth muscles and cardiac, or heart muscles. Each kind of muscle has a special job to do. 

The skeletal muscles are attached to the bones; they actually hold the skeleton together. Strong cords, called tendons(肌腱), help connect these muscles to the bones. Skeletal muscles give us strength and allow us to move in many ways. If you look at skeletal muscles through a microscope, you will see that it has bands of fibers that look like stripes(条纹). These stripes are called striations. Skeletal muscles usually move because the brain has sent a conscious message to them telling them what to do. This is called voluntary movement.

Another type of muscle is smooth muscle. Unlike skeletal muscle, smooth muscle does not have striations. This is found in organs such as the stomach, the bladder(膀胱), the lungs and the eyes. Smooth muscles are smaller than the skeletal muscles and they move involuntarily. The brain tells these muscles what to do, but we aren’t even aware of it. For example, we don’t have to think about breathing or digesting food. The smooth muscles just do their jobs automatically. For this reason smooth muscles are sometimes called involuntary muscles.

Like smooth muscle, cardiac muscle also works involuntarily. It is a very thick muscle that is found only in the walls of the heart. Its job is to pump blood out of the heart and into blood vessels called arteries(动脉). The arteries help carry the blood to all parts of the body. When the cardiac muscles relax, they let blood back into the heart. Cardiac muscles have striations, just like skeletal muscles do.

小题1:When we _______, the job is done by smooth muscles.

A．close our eyes

B．kick a ball

C．hug our friends

D．lift a suitcase小题2:Skeletal muscles and heart muscles are alike because_______.

A．both can move voluntarily

B．both are thick muscles

C．both are bigger than smooth muscles

D．both have stripes called striations小题3:Which of the following is TRUE according to the passage?

A．Heart muscles are very important because they give us strength and allow us to move.

B．The heart of human beings completely consists of heart muscle.

C．The skeletal muscles are connected to the bones by tendons.

D．Smooth muscle does its work without receiving message from the brain.

读华北某地地形图，据图判断下列各题。

①②③④四条坡面线的坡度比较（）

A．①＜③

B．①＜②

C．①＞②

D．③＝④