1里有______个0.25,0.5的3.2倍是______.
1÷0.25=4;
0.5×3.2=1.6.
故答案为:4,1.6.
阅读文章,判断对(T)错(F)。
This is my bedroom. It's small but very nice. My walls are pink. But the door and the window are blue.
This is my bed. There is a teddy bear on the bed. It's the gift from my mother. There is a football under
the bed. My computer is next to the bed on the table. I often study on it. Across from the bed, you can see
a picture my family on the wall.
( ) 1. My bedroom is nice but small.
( ) 2. My door is blue.
( ) 3. The teddy bear is the gift from my father.
( ) 4. There is a basketball under the bed.
( ) 5. I often study on my computer.
熔丝熔断时,应更换()。
A.熔丝;
B.相同容量熔丝;
C.大容量熔丝;
D.小容量熔丝。