下列仪器中,不能作为反应容器的是( ) A.试管 B.烧杯 C.量筒 D.集气瓶

题型:选择题

问题:

下列仪器中,不能作为反应容器的是(  )

A.试管

B.烧杯

C.量筒

D.集气瓶

考点:常用仪器的名称和选用
题型:选择题

     Directions: Read the following passage. Fill in the numbered blanks by using the information from

the passage.

     Write NO MORE THAN THREE WORDS for each answer.

     Maybe you are an average student. You probably think you will never be a top student. This is not necessary so, however. Anyone can become a better student if he or she wants to. Here's how:

       1. Plan your time carefully. When you plan your week, you should make a list of things that you have to do. After making this list, you should make a schedule of your time. First your time for eating, sleeping, dressing, etc. then decide a good, regular time for studying. Don't forget to set aside enough time for entertainment. A weekly schedule may not solve all your problems, but it will force you to realize what is happening to your time.

     2. Find a good place to study. Look around the house for a good study area. Keep this space, which may be a desk or simply a corner of your room, free of everything but study materials. No games, radios, or television! When you sit down to study, concentrate on the subject.

      3. Make good use of your time in class. Take advantage of class time to listen to everything the teachers say. Really listening in class means less work later. Taking notes will help you remember what the teacher says.

     4. Study regularly. When you get home from school, go over your notes. Review the important points that your teacher mentioned in class. If you know what your teacher is going to discuss the next day, read that material will become more meaningful, and you will remember it longer.

       5. Develop a good attitude about tests. The purpose of a test is to show what you have learned about a subject. They help you remember your new knowledge. The world won't end if you don't pass a test, so don't be overly worried. There are other methods that might help you with your studying. You will probably discover many others after you have tried these.

题型:选择题

市区10kV配电所的供电半径一般不大于( )。

A.10km

B.20km

C.500m

D.300m

题型:选择题

流通与生产、分配和消费的关系具体有哪几方面表现?

题型:选择题

中药泛油起决定作用的因素是

A.中药本身的性质

B.温度

C.湿度

D.贮藏保管

E.微生物

题型:选择题

下列关于计算机病毒的叙述中,错误的是______。

A.计算机病毒具有潜伏性
B.计算机病毒具有传染性
C.感染过计算机病毒的计算机具有对该病毒的免疫性
D.计算机病毒是一个特殊的寄生程序

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