克希霍夫第一定律是指流入节点的电流（）从节点流出的电流。 A.等于 B.大于 C.小
题型：单项选择题
问题：
克希霍夫第一定律是指流入节点的电流（）从节点流出的电流。
A.等于
B.大于
C.小于
D.近似于
题型：单项选择题
| 读一读，选一选。 | |
( ) 1.  | A. We have a new computer room. B. We have a new music room. |
( ) 2.  | A. That is a board. B. This is a bird. |
( ) 3.  | A. These are jeans. B. Those are pants. |
( ) 4.  | A. Look at my new shirt. B. Look at my new dress. |
( ) 5.  | A. The washroom is on the first floor. B. The washroom is on the second floor. |
