首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
To preserve food, the growth of bacteria(细菌)must be controlled. Water, warmth, and food are all needed for bacteria to become st
To preserve food, the growth of bacteria(细菌)must be controlled. Water, warmth, and food are all needed for bacteria to become st
admin
2018-07-18
72
问题
To preserve food, the growth of bacteria(细菌)must be controlled. Water, warmth, and food are all needed for bacteria to become strong and healthy. Some kinds of bacteria need air, but other kinds grow only when air is absent. Extremes of temperature, either hot or cold, can kill bacteria.
Before electric ice-boxes were invented, freezing and cooling were limited by the cold climate. In warmer regions, food was cooled by putting it in the shade, in cold water from the well, or in pits(坑)in the ground.
(71)
Cooking will usually kill bacteria if the temperature is high enough and the high temperature lasts long enough.
Certain methods of cooking remove water, and this aids in preserving food. Drying is the oldest and most common method of preserving food. Food can be dried by the sun, by heat or by combination of the two.
Salt was used by many hunting people. When people began to eat vegetables, salt became a needed part of their life. Salt helps to preserve food because it slows or stops bacteria to grow. Other chemicals besides salt are used in preserving food. Some people oppose the use of chemicals in food. They say that these chemicals may harm people if the chemicals can harm bacteria.
Cooking is an effective way in preserving food because______.
选项
A、all cooking methods remove water
B、cooking can make the food become dry
C、the light in cooking can kill bacteria
D、cooking can kill bacteria
答案
D
解析
事实细节题。根据文章第三段第一、二句可知,在一定的条件下(即温度够高、烹饪时间够长的话),烹饪法能杀死细菌,因此是一种保存食物的有效方法。
转载请注明原文地址:https://kaotiyun.com/show/otPC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
______,hefailedtopasstheexam.
Helooksasifhe______nothingaboutthenews.
Mr.SmithleftforLondonthismorning.Ihadthoughthe______untilnextMonday.
Thehallinourschoolis______tohold500people.
A______isthemoneychargedforajourneybybus,ship,airplane,taxi,train,etc.
Itwasnotuntilshehadarrivedhome()sherememberedherappointmentwiththedoctor.
Itwasnot______shehadarrivedhome______sherememberedshehadforgottenhersuitcaseinthehotel.
______fromBuckinghamPalace,thistriptakesyoutothebestofLondon’ssights.
ATobelieveitornot,hisdiscoveryBhascreatedCastirinscientificDcircles.
The______salaryofthestaffisabout$50.
随机试题
Ifit______tomorrow,thebasketballmatchwillhavetobecanceled.
男性患者,28岁,因与他人打架,右上臂被刀多处砍伤,右手活动受限。查体:右肘关节活动可,右拇、示、中指不能屈曲,拇指不能外展和对掌,桡侧三个半手指掌背侧均无感觉。该患者可能损伤
2012年6月20日,某区人民法院根据甲的申请,向乙发出了支付令。7月8日,乙打电话给法院称自己现在无偿付能力,特向法院提出异议,书面异议将于次日送交法院,同时乙到其他人民法院起诉甲。人民法院接到甲的申请书后,应当依法主要审查以下哪几个方面内容?(
不属于直接工程费的材料费的是()。
根据某地区2008—2016年农作物种植面积(X)与农作物产值(Y),可以建立一元线性回归模型,估计结果得到判定系数R2=0.9,回归平方和SSR=90,则估计标准误差为()。
导游员同旅游者(团)相处,是选择轮型沟通还是星型沟通,一般视沟通的()而定。
矫正对象往往处于与社会严重脱节的境况,这种社会特征不利于矫正对象()的修复和重建。
大学毕业不久,我就担任了初二(1)班的班主任,一天中午,一个学生急匆匆地跑来说,“老师,小杨不知为什么事,正和2班的老师争吵,还骂老师了。”我赶紧过去问缘由,得知2班的卫生区有几片废纸,被学校的值日生扣了分,据说2班有学生看见他正好走过,就告诉王老师,认为
托尔曼通过高架迷津迂回学习实验总结出的理论被称为()
下列关于电信网、有线电视网和计算机网的说法中,正确的是()。
最新回复
(
0
)