钢的熔化温度是随钢中的化学成份变化的,溶于钢中的化学元素含量越高,钢的熔点就()。
参考答案:越低
Read and answer.(读对话,判断下列句子是否正确,正确的画“√”,错误的画“×”)
Jimmy: Tomorrow is Easter. Let's buy some food.
Nancy: Good idea. I like oranges. Do you like oranges?
Jimmy: No, I don't like oranges.
Nancy: Do you like pears?
Jimmy: No, I don't like pears.
Nancy: Do you like watermelons?
Jimmy: Yes, I do.
( )1. Tomorrow is Mother's Day?
( )2. Jimmy likes oranges.
( )3. Nancy likes watermelons.
( ) 4. Jimmy likes pears.
外周血网织红细胞百分数为10%,首先可排除的是()
A.再生障碍性贫血
B.缺铁性贫血
C.急性失血性贫血
D.溶血性贫血
E.巨幼细胞贫血