电炉丝断了，去掉1/5后，仍然接在原来的电源两端，则在相同时间

【名词&注释】

布丁学网发布"电炉丝断了，去掉1/5后，仍然接在原来的电源两端，则在相同时间"考试试题下载及答案，更多初中的考试试题下载及答案考试题库请访问布丁学网学历类考试频道。

[单选题]电炉丝断了，去掉1/5后，仍然接在原来的电源两端，则在相同时间内产生的热量与原来产生的热量之比为

A. 5 ：4
B. 1 ：5
C. 5 ：1
D. 4 ：5

查看答案&解析查看所有试题

学习资料：

[单选题]15．

A. how
B. why
C. when
D. where

[单选题]B

Hi! My name is Tina． I’m an American girl． I like sports and I like ping-pong best． Do you know my favorite ping-pong star? She's a Chinese girl and she's very beautiful． Her name is Wang Nan． Do you know her? I have a great photo of Wang Nan． It's on the wall of my room． Welcome to my room． It's a nice room． Look! 12 soccer balls are on the table． 10 volleyballs are under the table． Behind the door are 12 basketballs． Only 5 baseballs are in my drawer． But I don’t have a tennis racket． I don't like to play tennis． ( )26．Wang Nan is a ________star．

A. I’m an American girl． I like sports and I like ping-pong best． Do you know my favorite ping-pong star? She's a Chinese girl and she's very beautiful． Her name is Wang Nan． Do you know her? I have a great photo of Wang Nan． It's on the wall of my room．
B. It's a nice room． Look! 12 soccer balls are on the table． 10 volleyballs are under the table． ehind the door are 12 basketballs． Only 5 baseballs are in my drawer． ut I don’t have a tennis racket． I don't like to play tennis．
C. Wang Nan is a ________star．
D. soccer
E. basketball
F. volleyball
G. ping-pong

本文链接：https://www.51ksbd.net/show/7er6j7.html