A：单位时间内消耗amolA，同时生成3amolC
B：容器的压强不再变化
C：混合气体的物质的量不再变化
D：C的生成速率与B的生成速率的比为3：2
在人类的遗传性状中，舌卷曲是显性（R），舌不卷曲是隐性（r）。请问，一对舌不卷曲的夫妇能生育出舌卷曲的子女吗？为什么？
世界最高峰珠穆朗玛峰海拔8848米，我国青藏高原海拔在4000米以上，两地相对高度是（ ）
This boy is Peter .He is from America．He is ten years old . His hair is yellow.Peter can play basketball. This is his school.It's very big. There are forty students in his class. Miss White is his English teacher. Peter is good at English.
