点燃蜡烛的过程中( ) A.只发生化学变化 B.只发生物理变化 C.没有发生物理

题型:选择题

问题:

点燃蜡烛的过程中(  )

A.只发生化学变化

B.只发生物理变化

C.没有发生物理变化

D.既有物理变化又有化学变化

考点:蜡烛燃烧物理变化和化学变化的特征和判别
题型:选择题

任务型阅读

       Starting a new school term is always exciting. It is a chance to see your friends again. Wecan

take up(开始从事) new hobbies besides common classes. It is common in Britain for students to

take up new hobbies after the Christmas holidays. Promising to start something new is a common

New Year resolution.     

       Most schools offer different kinds of hobby classes. Students take them in their free periods or

after school. Some classes you have to pay for and others are free. For example, I once took a free

Wednesday evening gymnastics class my school offered. But when I learnt how to play the drum my

parents had to pay for the lessons.  

       The most popular extra classes at my school were piano lessons.  We also like playing a role (角色)

in the drama club. Both classes offered exams that students could take. Students with many hobbies

sometimes felt more stressed than those without any. But the students with hobbies left school with

many extra skills.  

       I haven't continued any of the hobbies I began at school. But I have never regretted taking them.

My best friend today is someone I met in my gymnastic class.

根据短文内容完成下列任务

1. Put the underlined sentence into Chinese.  

__________________________________

2. Put the underlined phrase into Chinese.  

__________________________________

3. 把下列图片与所给的词匹配,只填写字母即可。

            A                             B                             C                           D

(1) common class___________    

(2) drama club ____________    

(3) extra class ___________    

(4)free class____________

4. What hobby class did the writer ever take at school? (回答问题)

                                                                         

题型:选择题

徐某于2009年1月1日在XYZ寿险公司购买了分红保险,保额为10万元。双方约定以累积生息方式领取红利,即每年派发的红利按一定利率计息并保存于保险公司,累计金额将与保险金一起支付。假设每年的红利都为1000元,积累利率为年复利10%。

若XYZ寿险公司通过计算期中责任准备金乘以利率的差额来确定红利数额,则该红利确定方法是()。

A.经验保费分红法

B.责任准备金式分红法

C.现金价值分红法

D.资产份额法

题型:选择题

两个阻值都是12Ω的电阻,把它们串联后的总电阻R=_________Ω,把它们并联后的总电阻为R _________ 12Ω(填写大于或小于、等于)

题型:选择题

具有-δ-内酯环的强心苷元,在紫外光谱中的最大吸收是()

A.217~220nm

B.295~300nm

C.240~280nm

D.270~295nm

E.245~270nm

题型:选择题

阻抗复合消声器

更多题库