设备安装工程的单机无负荷试车，由( )组织。A．发包人B．监理工程师C．承包人D．

义务兵和初级士官退出现役后，报考（），在与其他考生同等条件下优先录取。

A、自学考试

B、高等学校

C、国家公务员

D、中等职业学校

五十四岁妇女，绝经9年，近一周白带中带血丝， * * 窥器见子宫颈呈糜烂样改变。妇科检查除子宫稍小外，未见其他异常。 * * B型超声子宫内膜厚度3mm。

如果子宫颈刮片细胞学检查结果为ASC-US，下一步处理应是（）

A.高危型HPVDNA检测

B.盆腔CT检查

C.宫腔镜检查

D.子宫颈组织活检

E.血CA125检测

酶是一种生物催化剂。某研究小组在不同的外界条件下研究了唾液酶的催化效率，得到了如图信息：

甲                                             乙

（1）根据图表中的信息可知，唾液酶催化效率受____和_____的影响。  

（2）唾液酶只能催化分解淀粉，这属于酶的_______性。    

（3）在研究唾液酶的催化效率与温度的关系时，为了使结论更可靠，实验时要注意控制的变量是_____________________。

The most common disease in the world is the cold. It often starts with a sore throat（咽部疼痛）. You sneeze (打喷嚏) and your nose runs. You usually have a headache, too. Often you have a cough later. It's not a serious disease, but you can feel quite bad.

There isn't a cure (良药 ) for a cold, but you can take medicines to make you feel better. For example, you can take aspirin (阿司匹林) to get rid of your headache. It is good to rest, and to drink a lot of water, too. A doctor once told me, "With the right medicine, a cold will last for seven days. With no medicine, it will go on for a whole week!"

Where does our medicine come from? A long time ago, people understood that some plants made them feel better. They ate the leaves, the roots , the fruit or the seeds  of plants. For example, the juice of lemons (柠檬) makes a sore throat feel better. In modern times, scientists have looked at these plants, and found out which chemicals (化学药品) are in them. Many of our medicines today are made from those chemicals. There are some diseases that we can't cure yet. And nobody has found a cure for old age. But because of modern medicines, the average (平均的) person now lives longer than their grandparents.

1. A cold often starts with________________.

A. a headache     B. a cough   C. a pain in your throat    D. feeling a little cold

2. What should we do when we catch a cold?

A. We only take some medicine.

B. We should rest well, drink much water and have some medicine.

C. We just wait for a whole week.

D. We only need a good rest.

3. What makes a sore throat feel better?

A. The medicine aspirin.          B. A lot of water.

C. Something inside lemons.       D. The root of a plant.

4. What is the real meaning of the doctor's words?

A. There is almost no medicine that can cure the cold.

B. There is some medicine that can cure the cold.

C. You will feel well after a week when you take some medicine.

D. The cold is a serious disease.

二里冈文化中的郑州商城的墓葬为什么墓？（）

A.灰坑横穴

B.方形竖穴

C.土坑竖穴

D.长方形横穴