问题
选择题
下列做法中可取的是（ ）
①用手取锌粒 ②把鼻孔凑到集气瓶口闻气体的气味③实验室品尝氯化钠的味道 ④不说明用量时，固体取19～29 ⑤有毒的药液溅进眼睛，要立即用水冲洗（切不可用手揉眼睛）
A．①②
B．③⑤
C．④
D．⑤
答案
答案：D
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下列做法中可取的是（ ）
①用手取锌粒 ②把鼻孔凑到集气瓶口闻气体的气味③实验室品尝氯化钠的味道 ④不说明用量时，固体取19～29 ⑤有毒的药液溅进眼睛，要立即用水冲洗（切不可用手揉眼睛）
A．①②
B．③⑤
C．④
D．⑤
答案：D
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| A few days ago, my mom went to visit my grandparents. She wanted to stay there for a few days. It was the first time that Dad and I 1 at home without Mom. 2 the first day, Dad and I went out for a dinner. The next morning, we 3 got up late. I went to school without (没有) eating breakfast. I didn't feel 4 all day long. After school 5 I got home, I looked around. What a mess(杂乱)! I had to clean the rooms and did the dishes and the laundry. I was 6 after doing all of the housework. That evening I got a 7 from Mom. She said she would come back the next day. I felt very happy to 8 that.At that time I realized that Mom did 9 housework everyday. I told my dad that we should 10 to help Mom. He agreed.
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